Citazione APA

(1996). Ecology and environment in Bhutan. Library of Congress Office ; Library of Congress Photoduplication Service.

Stile di citazione Chicago

Ecology and Environment in Bhutan. New Delhi : Washington, D.C.: Library of Congress Office ; Library of Congress Photoduplication Service, 1996.

Citazione MLA

Ecology and Environment in Bhutan. Library of Congress Office ; Library of Congress Photoduplication Service, 1996.