Gaya APA

Smith, R, S, R, ;, R, O. (1975). Energy resource, salve, pollutant: a physical science text . New York: Macmillan Publishing.

Gaya MLA

Smith, Rpbert, S., Rouse, ;, Robert, O.. "Energy resource, salve, pollutant: a physical science text". New York: Macmillan Publishing, 1975. Text.