Cita APA (7a ed.)

Pritchard, E. P. (1961). University extra-mural libraries. Library Association.

Cita Chicago Style (17a ed.)

Pritchard, E. P. University Extra-mural Libraries. London: Library Association, 1961.

Cita MLA (8a ed.)

Pritchard, E. P. University Extra-mural Libraries. Library Association, 1961.