APA (7th ed.) Citation

Downs, R. B. (1938). Resources of Southern libraries: A survey of facilities for research. Gregg Press.

Chicago Style (17th ed.) Citation

Downs, Robert Bingham. Resources of Southern Libraries: A Survey of Facilities for Research. Boston: Gregg Press, 1938.

MLA (9th ed.) Citation

Downs, Robert Bingham. Resources of Southern Libraries: A Survey of Facilities for Research. Gregg Press, 1938.