Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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