Παραπομπή σε μορφή APA (7η εκδ.)

Hammer, D. A. (1989). Constructed wetlands for wastewater treatment: Municipal, industrial and agricultural. Lewis.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hammer, Donald A. Constructed Wetlands for Wastewater Treatment: Municipal, Industrial and Agricultural. Michigan: Lewis, 1989.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hammer, Donald A. Constructed Wetlands for Wastewater Treatment: Municipal, Industrial and Agricultural. Lewis, 1989.