Παραπομπή σε μορφή APA (7η εκδ.)

Intermediate Technology Publications & Boyd, J. (1977). I.T. high-clearance rotary hoe (Daudawa, N.C.S. Nigeria). Intermediate Technology Publications.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Intermediate Technology Publications και John Boyd. I.T. High-clearance Rotary Hoe (Daudawa, N.C.S. Nigeria). London: Intermediate Technology Publications, 1977.

Παραπομπή σε μορφή MLA (8th εκδ.)

Intermediate Technology Publications και John Boyd. I.T. High-clearance Rotary Hoe (Daudawa, N.C.S. Nigeria). Intermediate Technology Publications, 1977.