Rottger, E. (1963). Creative drawing: Point and line. Reinhold.
Chicago Style (17th ed.) CitationRottger, Ernest. Creative Drawing: Point and Line. New York: Reinhold, 1963.
MLA引文Rottger, Ernest. Creative Drawing: Point and Line. Reinhold, 1963.
警告:這些引文格式不一定是100%准確.