APA (7th ed.) Citation

McColvin, L. R. (1927). Library extension work & publicity. Grafton.

Chicago Style (17th ed.) Citation

McColvin, Lionel Roy. Library Extension Work & Publicity. London: Grafton, 1927.

MLA (9th ed.) Citation

McColvin, Lionel Roy. Library Extension Work & Publicity. Grafton, 1927.

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