Gaya APA

Swanson, C, P., Stern, P, D. (1965). **Our space environment . New York: New York: Holt, Rinehart and Winston; 1965..

Gaya MLA

Swanson, Carl, P.., Stern, Phillip, D.. "**Our space environment". New York: New York: Holt, Rinehart and Winston; 1965., 1965. Text.