Παραπομπή APA

H C Saxena. (1980). Calculus of finite differences. Newdelhi.

Παραπομπή Chicago Style

H C Saxena. Calculus of Finite Differences. Newdelhi, 1980.

Παραπομπή MLA

H C Saxena. Calculus of Finite Differences. Newdelhi, 1980.