Cita APA (7a ed.)

Pragnell, R. J. (1982). Books by Mail: The Mail Man Is Your Assistant Librarian.

Cita Chicago Style (17a ed.)

Pragnell, Ruth J. Books by Mail: The Mail Man Is Your Assistant Librarian. 1982.

Cita MLA (9a ed.)

Pragnell, Ruth J. Books by Mail: The Mail Man Is Your Assistant Librarian. 1982.