Παραπομπή APA

Singal, M., & Singal, A. R. (1977). Algebra. S Chand and Company.

Παραπομπή Chicago Style

Singal, M.K, και Asha Rani Singal. Algebra. Delhi: S Chand and Company, 1977.

Παραπομπή MLA

Singal, M.K, και Asha Rani Singal. Algebra. S Chand and Company, 1977.