Ert & Blum, S. (1976). Designs by ert: Fashion drawings and illustrations from harper's bazar. Dover Publications.
Citace podle Chicago (17th ed.)Ert a Stella Blum. Designs by Ert: Fashion Drawings and Illustrations from Harper's Bazar. New York: Dover Publications, 1976.
Citace podle MLA (9th ed.)Ert a Stella Blum. Designs by Ert: Fashion Drawings and Illustrations from Harper's Bazar. Dover Publications, 1976.
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