Cita APA

Trivedi. P.R & Gurdeep Raj. (1992). Concepts in Environment. Akasheddp.

Chicago Edition Citation

Trivedi. P.R i Gurdeep Raj. Concepts in Environment. New Delhi: Akasheddp, 1992.

Cita MLA

Trivedi. P.R i Gurdeep Raj. Concepts in Environment. Akasheddp, 1992.