APA (7th ed.) Citation

Drummond, A. H. (1973). American opera librettos. Scarecrow Press.

Chicago Style (17th ed.) Citation

Drummond, Andrew H. American Opera Librettos. Metuchen, N.J.: Scarecrow Press, 1973.

MLA (8th ed.) Citation

Drummond, Andrew H. American Opera Librettos. Scarecrow Press, 1973.

Warning: These citations may not always be 100% accurate.