APA (7th ed.) Citation

Enoch Pratt Free Library, Barton, M. N., & Watson, E. F. (1950). General Reference Department staff manual. [publisher not identified].

Chicago Style (17th ed.) Citation

Enoch Pratt Free Library, Mary Neill Barton, and Ellen Frances Watson. General Reference Department Staff Manual. Baltimore: [publisher not identified], 1950.

MLA (9th ed.) Citation

Enoch Pratt Free Library, et al. General Reference Department Staff Manual. [publisher not identified], 1950.