एपीए उद्धरण

Thomas, S. E. (2003). Economic and regional geography. Sumit enterprises.

शिकागो स्टाइल उद्धरण

Thomas, S Evelyn. Economic and Regional Geography. ND: Sumit enterprises, 2003.

एमएलए उद्धरण

Thomas, S Evelyn. Economic and Regional Geography. Sumit enterprises, 2003.