Cita APA (7a ed.)

Sneath, P. H. A., & Sokal, R. R. (1973). Numerical taxonomy: The principles and practice of numerical classification. Freeman.

Cita Chicago Style (17a ed.)

Sneath, Peter H. A., y Robert R. Sokal. Numerical Taxonomy: The Principles and Practice of Numerical Classification. San Francisco: Freeman, 1973.

Cita MLA (9a ed.)

Sneath, Peter H. A., y Robert R. Sokal. Numerical Taxonomy: The Principles and Practice of Numerical Classification. Freeman, 1973.