APA引文

Kumar, N. (2005). An elementary course on variational problems in calculus. Harrow, U.K: Alpha Science International Ltd.

Trích dẫn kiểu Chicago

Kumar, Naveen. An Elementary Course On Variational Problems in Calculus. Harrow, U.K: Alpha Science International Ltd, 2005.

MLA引文

Kumar, Naveen. An Elementary Course On Variational Problems in Calculus. Harrow, U.K: Alpha Science International Ltd, 2005.

警告：這些引文格式不一定是100％准確.