Ert & Blum, S. (1976). Designs by ert: Fashion drawings and illustrations from harper's bazar. Dover Publications.
Citazione stile Chigago Style (17a edizione)Ert e Stella Blum. Designs by Ert: Fashion Drawings and Illustrations from Harper's Bazar. New York: Dover Publications, 1976.
Citatione MLA (9a ed.)Ert e Stella Blum. Designs by Ert: Fashion Drawings and Illustrations from Harper's Bazar. Dover Publications, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.