Gaya APA

Swanson, C, P., Thralls, Z, A. (1958). Teaching of geography . New York: New York: Appleton-Century-Crofts; 1958.

Gaya MLA

Swanson, Carl, P.., Thralls, Zoe, A.. "Teaching of geography". New York: New York: Appleton-Century-Crofts; 1958, 1958. Text.