Gaya APA

Becker, S, D., Wheeler, W, B. (1986). Discovering the American Past : A Look At The Evidence (Ed. 1). USA: Houghton Mifflin Company.

Gaya MLA

Becker, Susan, D.., Wheeler, William, Bruce. "Discovering the American Past : A Look At The Evidence". Ed. 1 USA: Houghton Mifflin Company, 1986. Text.