Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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