Gaya APA

Walker, W, J, S, ;, M, J, E, ;, B, J. (1991). Marketing perspectives from business week to accompany fundamentals of marketing (ed. 9). New York: McGraw-Hill.

Gaya MLA

Walker, William, J., Stanton, ;, Michael, J., Etzel, ;, Bruce, J.. "Marketing perspectives from business week to accompany fundamentals of marketing". ed. 9 New York: McGraw-Hill, 1991. Text.