Cita APA (7th ed.)

(1992). Environmental problems: Prospects and constraints. Anmol Pub.

Cita Chicago (17th ed.)

Environmental Problems: Prospects and Constraints. New Delhi: Anmol Pub, 1992.

Cita MLA (9th ed.)

Environmental Problems: Prospects and Constraints. Anmol Pub, 1992.

Atenció: Aquestes cites poden no estar 100% correctes.