Παραπομπή APA

Maguire , D. J., Goodchild, M. F., & Rhind , D. W. (1994). Geographical information systems: Principles and applications. Essex: Longman Scientific & Technical.

Παραπομπή Chicago Style

Maguire , David J., Michael F. Goodchild, and David W. Rhind. Geographical Information Systems: Principles and Applications. Essex: Longman Scientific & Technical, 1994.

Παραπομπή MLA

Maguire , David J., Michael F. Goodchild, and David W. Rhind. Geographical Information Systems: Principles and Applications. Essex: Longman Scientific & Technical, 1994.

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