Cita APA (7a ed.)

Urquhart, D. (1981). The Principles of Librarianship. Scarecrow.

Cita Chicago Style (17a ed.)

Urquhart, Donald. The Principles of Librarianship. s.l.: Scarecrow, 1981.

Cita MLA (9a ed.)

Urquhart, Donald. The Principles of Librarianship. Scarecrow, 1981.