APA Style

Longley, P, A., Goodchild, M, F. (2011). Geographic Information Systems & Science (3rd ed.). United State America: John Wiley & Sons.

MLA Style

Longley, Paul, A., Goodchild, Michael, F. "Geographic Information Systems & Science". 3rd ed. United State America: John Wiley & Sons, 2011. Sistem Informasi.