Dyfyniad APA

Cirker, H., & Cirker, B. (1971). The golden age of the poster. Dover Publications.

Dyfyniad Arddull Chicago

Cirker, Hayward, and Blanche Cirker. The Golden Age of the Poster. New York: Dover Publications, 1971.

Dyfyniad MLA

Cirker, Hayward, and Blanche Cirker. The Golden Age of the Poster. Dover Publications, 1971.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.