Citazione Stile APA (7a Edizione)

O'Sullivan, D., & Unwin, D. (2010). Geographic information analysis (2nd ed.). John Wiley & Sons.

Citazione stile Chigago Style (17a edizione)

O'Sullivan, David, e D. Unwin. Geographic Information Analysis. 2nd ed. Hoboken, N.J: John Wiley & Sons, 2010.

Citatione MLA (9a ed.)

O'Sullivan, David, e D. Unwin. Geographic Information Analysis. 2nd ed. John Wiley & Sons, 2010.