Citazione Stile APA (7a Edizione)

Walford, N. (2011). Practical statistics for geographers and earth scientists. Wiley-Blackwell.

Citazione stile Chigago Style (17a edizione)

Walford, Nigel. Practical Statistics for Geographers and Earth Scientists. Chichester, West Sussex: Wiley-Blackwell, 2011.

Citatione MLA (9a ed.)

Walford, Nigel. Practical Statistics for Geographers and Earth Scientists. Wiley-Blackwell, 2011.