APA (7th ed.) Zitazioa

Rottger, E. (1963). Creative drawing: Point and line. Reinhold.

Chicago Style (17th ed.) Zitazioa

Rottger, Ernest. Creative Drawing: Point and Line. New York: Reinhold, 1963.

MLA (9th ed.) Zitazioa

Rottger, Ernest. Creative Drawing: Point and Line. Reinhold, 1963.