APA

Hoffmann F. W., . (1979). The development of library collections of sound recordings. New York: M. Dekker.

Chicago

Hoffmann Frank W, . 1979. The development of library collections of sound recordings. New York: M. Dekker.

Harvard

Hoffmann F. W., . (1979). The development of library collections of sound recordings. New York: M. Dekker.

MLA

Hoffmann Frank W, . The development of library collections of sound recordings. New York: M. Dekker. 1979.