Παραπομπή σε μορφή APA (7η εκδ.)

(1993). Ecology and environment in India. Library of Congress Office ; Library of Congress Photoduplication Service.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ecology and Environment in India. New Delhi : Washington, D.C.: Library of Congress Office ; Library of Congress Photoduplication Service, 1993.

Παραπομπή σε μορφή MLA (8th εκδ.)

Ecology and Environment in India. Library of Congress Office ; Library of Congress Photoduplication Service, 1993.