Gaya APA

Swanson, C, P., L., F, F. (1964). **Our planet resources plants and economic importance . New York: New York: Holt, Rinehart and Winston; 1964..

Gaya MLA

Swanson, Carl, P.., L., Fitzpatrick., Frederick. "**Our planet resources plants and economic importance". New York: New York: Holt, Rinehart and Winston; 1964., 1964. Text.