Παραπομπή σε μορφή APA (7η εκδ.)

Knox, P. L., & Agnew, J. A. (1998). The geography of the world economy: An introduction to economic geography (3rd ed.). Arnold.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Knox, Paul L., και John A. Agnew. The Geography of the World Economy: An Introduction to Economic Geography. 3rd ed. London: Arnold, 1998.

Παραπομπή σε μορφή MLA (9th εκδ.)

Knox, Paul L., και John A. Agnew. The Geography of the World Economy: An Introduction to Economic Geography. 3rd ed. Arnold, 1998.