Cita APA (7th ed.)

National Gallery of Canada & Blom, W. A. (1964). Illustrated guide to the collections. [s.n.].

Cita Chicago (17th ed.)

National Gallery of Canada i Willem A. Blom. Illustrated Guide to the Collections. Ottawa: [s.n.], 1964.

Cita MLA (9th ed.)

National Gallery of Canada i Willem A. Blom. Illustrated Guide to the Collections. [s.n.], 1964.