[A semi-annotated list of references to George Crumb in general music books can be found at ibiblio.]

ALCAREZ, J.A. George Crumb - entrevista y comentarios. Mexico City, 1977.

BAUR, John. Music Theory through Literature. Englewood Cliffs, NJ: Prentice-Hall, 1984. {Ancient Voices of Children}
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BERRY, Ian, MENSING, Margo, and CRONE-ODEKON, Mary.  A Very Liquid Heaven.  Francis Young Tang Teaching Museum, 2005.  ISBN 097251886X.
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BORROFF, Edith. Three American Composers. University Press of America, 1986. ISBN 0819153710. [annotations]
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BRUNS, Steven and BEN-AMOTS, Ofer.  George Crumb: The Alchemy of Sound. The Colorado College Music Press, 2005. [CC Music Press]

Cohen, David.  George Crumb: A Bio-Bibliography. Greenwood Publishing Group, 2002. ISBN 0313318875. [Buy this book at Amazon.com]

COPE, David H. New Directions in Music. 6th edition. Waveland Press, 1998. ISBN 088133992X.
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GAGNE, Cole & CARAS, Tracy. Soundpieces: Interviews with American Composers. Metuchen, NJ: Scarecrow Press, 1982. ISBN 0810827107.
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GANN, Kyle. American Music in the Twentieth Century. Schirmer Books, 1997. ISBN 002864655X.
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GILLESPIE, Don C. (ed.) George Crumb: Profile of a Composer. New York: C.F. Peters, 1986. ISBN 0938856022. [annotations]
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GRIFFITHS, Paul. Modern Music and After: Directions since 1945. Oxford: Oxford University Press, 1995. ISBN 0198165110. {Only a passing mention to Night of the Four Moons on page 162.}
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KRAMER, Lawrence (ed.) Walt Whitman and Musical Modernism. Garland Publishing, 2000. ISBN 0815331541. {Includes a good treatment of Apparition in Chapter 7.}
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LEWIS, Thomas P. (ed.) Something About the Music 2: Guide to Contemporary Repertory. White Plains, NY: Pro/Am Music Resources, 1990. ISBN 0912483660. pp. 144-159.
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MACHLIS, Joseph. Introduction to Contemporary Music. 2nd edition. New York: W.W. Norton, 1979. ISBN 0393090264. pp. 519-524, 570.
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MORGAN, Robert P. Twentieth-Century Music: A History of Musical Style in Modern Europe and America. New York: W.W. Norton, 1991. ISBN 039395272X. pp. 391, 413, 420-421, 446.
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NICHOLS, Janet. American Music Makers: An Introduction to American Composers. Walker & Co., 1990. ISBN 0802769578.
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SCHWARTZ, Elliott & GODFREY, Daniel. Music since 1945: Issues, Materials, and Literature. New York: Schirmer, 1993. ISBN 0028730402. pp. 141, 142, 170-172, 200, 233-235, 251-252, 256-257, 275-276, 297, 407-409.
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SMITH, Geoff & SMITH, Nicola Walker. New Voices: American Composers talk about their Music. Portland, OR: Amadeus Press, 1995. ISBN 0931340853. pp. 93-102.
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STRICKLAND, Edward. American Composers : Dialogues on Contemporary Music. Indiana University Press, 1991. ISBN 025320643X.
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