Παραπομπή σε μορφή APA (7η εκδ.)

South-western college publishing & Arnold, R. (1998). Economics (4th.). South-western college publishing.

Παραπομπή σε μορφή Chicago (17η εκδ.)

South-western college publishing και R. Arnold. Economics. 4th. Ohio: South-western college publishing, 1998.

Παραπομπή σε μορφή MLA (8th εκδ.)

South-western college publishing και R. Arnold. Economics. 4th. South-western college publishing, 1998.