Lua APA (7ú heag.)
Lall, M., & Shikha Sahai. (2008). Fundamentals of environmental studies (2nd ed.). Excel Books.
Lua i Stíl Chicago (17ú heag.)
Lall, Madhurima, agus Shikha Sahai. Fundamentals of Environmental Studies. 2nd ed. New Delhi: Excel Books, 2008.
Lua MLA (9ú heag.)
Lall, Madhurima, agus Shikha Sahai. Fundamentals of Environmental Studies. 2nd ed. Excel Books, 2008.
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