Παραπομπή σε μορφή APA (7η εκδ.)

Joel, A. (2000). Surface runoff: A water source for poor farming communities in drylands. Swedish University of Agricultural Sciences.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Joel, Abraham. Surface Runoff: A Water Source for Poor Farming Communities in Drylands. Uppsala: Swedish University of Agricultural Sciences, 2000.

Παραπομπή σε μορφή MLA (8th εκδ.)

Joel, Abraham. Surface Runoff: A Water Source for Poor Farming Communities in Drylands. Swedish University of Agricultural Sciences, 2000.