APA استشهاد

Zeisel, H. (1947). Say it with figures (5th ed.). Harper & Row.

استشهاد بنمط شيكاغو

Zeisel, Hans. Say It with Figures. 5th ed. New York: Harper & Row, 1947.

MLA استشهاد

Zeisel, Hans. Say It with Figures. 5th ed. Harper & Row, 1947.