Παραπομπή σε μορφή APA (7η εκδ.)

Cadoux-Hudson, J., & Heywood, I. (1991). Geographic Information 1991: The Yearbook of the Association for Geographic Information. Taylor & Francis Miles Arnold.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cadoux-Hudson, James, και Ian Heywood. Geographic Information 1991: The Yearbook of the Association for Geographic Information. London: Taylor & Francis Miles Arnold, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Cadoux-Hudson, James, και Ian Heywood. Geographic Information 1991: The Yearbook of the Association for Geographic Information. Taylor & Francis Miles Arnold, 1991.