APA (7e ed.) Bronvermelding

Ert & Blum, S. (1976). Designs by ert: Fashion drawings and illustrations from harper's bazar. Dover Publications.

Chicago (17e ed.) Bronvermelding

Ert en Stella Blum. Designs by Ert: Fashion Drawings and Illustrations from Harper's Bazar. New York: Dover Publications, 1976.

MLA (9e ed.) Bronvermelding

Ert en Stella Blum. Designs by Ert: Fashion Drawings and Illustrations from Harper's Bazar. Dover Publications, 1976.