Gaya APA

Swanson, C, P., Murphey, R. (1978). Patterns on the earth an introduction to geography . Chicago: Chicago: Rand McNally; 1978.

Gaya MLA

Swanson, Carl, P.., Murphey, Rhoads. "Patterns on the earth an introduction to geography". Chicago: Chicago: Rand McNally; 1978, 1978. Text.