Cita APA (7th ed.)

Parry, R. P., & Perkins, C. P. (2001). The Map library in the new millenium. American Library Association.

Cita Chicago (17th ed.)

Parry, Robert P., i C. P. Perkins. The Map Library in the New Millenium. London: American Library Association, 2001.

Cita MLA (9th ed.)

Parry, Robert P., i C. P. Perkins. The Map Library in the New Millenium. American Library Association, 2001.