APA引文

Siersma, D. (1974). Classification and deformation of singularities. Amsterdam: Academisch Proefschrift.

Trích dẫn kiểu Chicago

Siersma, Dirk. Classification and Deformation of Singularities. Amsterdam: Academisch Proefschrift, 1974.

MLA引文

Siersma, Dirk. Classification and Deformation of Singularities. Amsterdam: Academisch Proefschrift, 1974.

警告：这些引文格式不一定是100％准确.