Cita APA (7th ed.)

McColvin, L. R. (1957). Public library services for children. Unesco.

Cita Chicago (17th ed.)

McColvin, Lionel R. Public Library Services for Children. Paris: Unesco, 1957.

Cita MLA (9th ed.)

McColvin, Lionel R. Public Library Services for Children. Unesco, 1957.