APA (7th ed.) Citation

Cowden, R. H. (1985). Concert and opera singers: A bibliography of biographical materials (1. publ.). Greenwood Press.

Chicago Style (17th ed.) Citation

Cowden, Robert H. Concert and Opera Singers: A Bibliography of Biographical Materials. 1. publ. Westport, Conn. [u.a.]: Greenwood Press, 1985.

MLA (9th ed.) Citation

Cowden, Robert H. Concert and Opera Singers: A Bibliography of Biographical Materials. 1. publ. Greenwood Press, 1985.