Citazione Stile APA (7a Edizione)

GEOGRAPHICAL & MAGUIRE, D. J. [. (1991). Geographical information systems: Principles and appli-cations. Longman.

Citazione stile Chigago Style (17a edizione)

GEOGRAPHICAL e David J [ed] MAGUIRE. Geographical Information Systems: Principles and Appli-cations. New York: Longman, 1991.

Citatione MLA (9a ed.)

GEOGRAPHICAL e David J [ed] MAGUIRE. Geographical Information Systems: Principles and Appli-cations. Longman, 1991.