Gaya APA

Birker, S. (1993). Drawing : painting with colored pencils / Stefan Birker; penerjemah, by Elisabeth E. Reinersmann . New York: Sterling Publication.

Gaya MLA

Birker, Stefan. "Drawing : painting with colored pencils / Stefan Birker; penerjemah, by Elisabeth E. Reinersmann". New York: Sterling Publication, 1993. Textbook.