Gaya APA

Becker, S, D., Wheeler, W, B. (1986). Discovering the American past : a look at the evidence . Boston: Houghton Mifflin Co..

Gaya MLA

Becker, Susan, D.., Wheeler, William, Bruce. "Discovering the American past : a look at the evidence". Boston: Houghton Mifflin Co., 1986. Text.