Singh, S. (2010). Geography: For the UPSC Civil Services preliminary examination (3rd ed.). TMH.
Chicago-стиль цитированияSingh, Surender. Geography: For the UPSC Civil Services Preliminary Examination. 3rd ed. New Delhi: TMH, 2010.
MLA-цитированиеSingh, Surender. Geography: For the UPSC Civil Services Preliminary Examination. 3rd ed. TMH, 2010.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.