Cita APA (7a ed.)

May, P., & Patrick, P. M. (1978). Youth in the Public Library: Services and Programs.

Cita Chicago Style (17a ed.)

May, Patricia, y Patricia M. Patrick. Youth in the Public Library: Services and Programs. 1978.

Cita MLA (9a ed.)

May, Patricia, y Patricia M. Patrick. Youth in the Public Library: Services and Programs. 1978.