Παραπομπή APA

David Bomford, Kirby Jo, Roy Ashok, & Leighton John. (1990). Art in the making impressionism. National Gallery.

Παραπομπή Chicago Style

David Bomford, Kirby Jo, Roy Ashok, και Leighton John. Art in the Making Impressionism. London: National Gallery, 1990.

Παραπομπή MLA

David Bomford, et al. Art in the Making Impressionism. National Gallery, 1990.