APA-referens (7:e uppl.)

Harichandan, A. (2010). Geographical information system. Global.

Chicago-referens (17:e uppl.)

Harichandan, Amit. Geographical Information System. New Delhi: Global, 2010.

MLA-referens (9:e uppl.)

Harichandan, Amit. Geographical Information System. Global, 2010.