APA Style

Massart, D., Kaufman, L. (1983). The Interpretation of Analytical Chemical Data by the Use of Cluster Analysis . New York: John Wiley \r Sons.

MLA Style

Massart, D.Luc., Kaufman, Leonard. "The Interpretation of Analytical Chemical Data by the Use of Cluster Analysis". New York: John Wiley \r Sons, 1983. print.