LENKA ,D. (2018). CLIMATE, WEATHER AND CROP IN INDIA (2ND.). KALYAN PUBLISHERS, LUDHIYANA.
Chicago-referens (17:e uppl.)LENKA ,D. CLIMATE, WEATHER AND CROP IN INDIA. 2ND. KALYAN PUBLISHERS, LUDHIYANA, 2018.
MLA-referens (9:e uppl.)LENKA ,D. CLIMATE, WEATHER AND CROP IN INDIA. 2ND. KALYAN PUBLISHERS, LUDHIYANA, 2018.
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