APA (7th ed.) Citation

Kaufman, L., & Rousseeuw, P. J. (1990). Finding groups in data: An introduction to cluster analysis. John Wiley.

Chicago Style (17th ed.) Citation

Kaufman, Leonard, and Peter J. Rousseeuw. Finding Groups in Data: An Introduction to Cluster Analysis. Nueva York: John Wiley, 1990.

MLA (9th ed.) Citation

Kaufman, Leonard, and Peter J. Rousseeuw. Finding Groups in Data: An Introduction to Cluster Analysis. John Wiley, 1990.