Παραπομπή APA

Naveen Kumar. (2005). Elementary course on variational problems in calculus. Narosa.

Παραπομπή Chicago Style

Naveen Kumar. Elementary Course on Variational Problems in Calculus. Chennai: Narosa, 2005.

Παραπομπή MLA

Naveen Kumar. Elementary Course on Variational Problems in Calculus. Narosa, 2005.