Παραπομπή σε μορφή APA (7η εκδ.)

National Gallery of Canada. (1961). Exhibition of works from the Paul Oppe collection. The National Gallery of Canada.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Gallery of Canada. Exhibition of Works from the Paul Oppe Collection. Ottawa: The National Gallery of Canada, 1961.

Παραπομπή σε μορφή MLA (8th εκδ.)

National Gallery of Canada. Exhibition of Works from the Paul Oppe Collection. The National Gallery of Canada, 1961.