APA引文

Sommerville, D. M. Y. (1958). The elements of non-Euclidean geometry. Dover.

Chicago Style (17th ed.) Citation

Sommerville, D. M. Y. The Elements of Non-Euclidean Geometry. New York: Dover, 1958.

MLA引文

Sommerville, D. M. Y. The Elements of Non-Euclidean Geometry. Dover, 1958.

警告：這些引文格式不一定是100％准確.