APA (7e ed.) Bronvermelding

Babbitt, M., Babbitt, M., Wummer, J., Drucker, S., Marsh, P., McCall, D., . . . Bavicchi, J. (1960). Composition for four instruments (1948) ; Composition for viola and piano (1950). Composers Recordings CRI 138.

Chicago (17e ed.) Bronvermelding

Babbitt, Milton, Milton Babbitt, John Wummer, Stanley Drucker, Peter Marsh, Donald McCall, Alvin Bauman, Walter Trampler, en John Bavicchi. Composition for Four Instruments (1948) ; Composition for Viola and Piano (1950). s.l: Composers Recordings CRI 138, 1960.

MLA (9e ed.) Bronvermelding

Babbitt, Milton, et al. Composition for Four Instruments (1948) ; Composition for Viola and Piano (1950). Composers Recordings CRI 138, 1960.