Παραπομπή APA

Potti, L. Textbook of numerical skills. Yamuna Publications.

Παραπομπή Chicago Style

Potti, L.R. Textbook of Numerical Skills. Thiruvananthapuram: Yamuna Publications.

Παραπομπή MLA

Potti, L.R. Textbook of Numerical Skills. Yamuna Publications.