Παραπομπή APA

Jain & Sharma. Upkar's arithmetic for competitive examinations. Upkar Prakashan.

Παραπομπή Chicago Style

Jain και Sharma. Upkar's Arithmetic for Competitive Examinations. Agra: Upkar Prakashan.

Παραπομπή MLA

Jain και Sharma. Upkar's Arithmetic for Competitive Examinations. Upkar Prakashan.