APA استشهاد

Davidson, N., & Gulick, F. (1976). Abstract algebra, an active learning approach. Houghton Mifflin.

استشهاد بنمط شيكاغو

Davidson, Neil, و Fraces Gulick. Abstract Algebra, an Active Learning Approach. Atlanta: Houghton Mifflin, 1976.

MLA استشهاد

Davidson, Neil, و Fraces Gulick. Abstract Algebra, an Active Learning Approach. Houghton Mifflin, 1976.