Cita APA (7th ed.)

McColvin, L. R., & McColvin, E. R. (1936). Library stock and assistance to readers: A textbook. Grafton.

Cita Chicago (17th ed.)

McColvin, Lionel R., i Eric Raymond McColvin. Library Stock and Assistance to Readers: A Textbook. London: Grafton, 1936.

Cita MLA (8th ed.)

McColvin, Lionel R., i Eric Raymond McColvin. Library Stock and Assistance to Readers: A Textbook. Grafton, 1936.