Gaya APA

Wheller, J, H., Swanson, C, P. (1960). **geography of the world an introductory survey . New York: New York: Henry Holt and Company; 1960.

Gaya MLA

Wheller, Jesse, H., Swanson, Carl, P.. "**geography of the world an introductory survey". New York: New York: Henry Holt and Company; 1960, 1960. Text.