Παραπομπή APA

Gupta,S.P. (1990). Population growth and the problem of unemployment. Anmol.

Παραπομπή Chicago Style

Gupta,S.P. Population Growth and the Problem of Unemployment. New Delhi: Anmol, 1990.

Παραπομπή MLA

Gupta,S.P. Population Growth and the Problem of Unemployment. Anmol, 1990.