Gaya APA

Maguire, D, J. et al (1991). Geographical Information Systems; Principles And Applications Vol 2 : Applications (Cet. 1). Essex: Longman Scientific &Technical.

Gaya MLA

Maguire, David, J.. et al. "Geographical Information Systems; Principles And Applications Vol 2 : Applications". Cet. 1 Essex: Longman Scientific &Technical, 1991. Text.