APA

Greaves R. L., Zaller R. & Tolbert Roberts J. (1994). Civilizations of the west : the human adventure. New York: HarperCollins Publishers.

Chicago

Greaves Richard L, Zaller Robert and Tolbert Roberts Jennifer. 1994. Civilizations of the west : the human adventure. New York: HarperCollins Publishers.

Harvard

Greaves R. L., Zaller R. and Tolbert Roberts J. (1994). Civilizations of the west : the human adventure. New York: HarperCollins Publishers.

MLA

Greaves Richard L, Zaller Robert and Tolbert Roberts Jennifer. Civilizations of the west : the human adventure. New York: HarperCollins Publishers. 1994.