APA استشهاد

Lang, S. (1999). Fundamentals of Differential Geometry. Springer.

استشهاد بنمط شيكاغو

Lang, Serge. Fundamentals of Differential Geometry. U.S.A.: Springer, 1999.

MLA استشهاد

Lang, Serge. Fundamentals of Differential Geometry. Springer, 1999.