APA Citation

O'Shaughnessy, J. (1987). Why people buy. New York: Oxford University Press.

Chicago Style Citation

O'Shaughnessy, John. Why People Buy. New York: Oxford University Press, 1987.

MLA Citation

O'Shaughnessy, John. Why People Buy. New York: Oxford University Press, 1987.

Warning: These citations may not always be 100% accurate.