(1993). Ecology and environment in India. Library of Congress Office ; Library of Congress Photoduplication Service.
Chicago-viite (17. p.)Ecology and Environment in India. New Delhi : Washington, D.C.: Library of Congress Office ; Library of Congress Photoduplication Service, 1993.
MLA-viite (8. p.)Ecology and Environment in India. Library of Congress Office ; Library of Congress Photoduplication Service, 1993.
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