Dyfyniad APA

Dubey, R. n. Economic and commercial Geography (16 th ed.). Kitab Mahal.

Dyfyniad Arddull Chicago

Dubey, R n. Economic and Commercial Geography. 16 th ed. Allahabad: Kitab Mahal.

Dyfyniad MLA

Dubey, R n. Economic and Commercial Geography. 16 th ed. Kitab Mahal.

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