Gaya APA

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

Gaya MLA

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