Παραπομπή σε μορφή APA (7η εκδ.)

Orr, A., Nazrul Islam, A. S. M., & Barnes, G. (1991). The Treadle pump: Manual of irrigation for small farmers in Bangladesh. Rangpur Dinajpur Rural Service.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Orr, Alastair, A. S. M. Nazrul Islam, και Gunnar Barnes. The Treadle Pump: Manual of Irrigation for Small Farmers in Bangladesh. Dhaka, Bangladesh: Rangpur Dinajpur Rural Service, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Orr, Alastair, et al. The Treadle Pump: Manual of Irrigation for Small Farmers in Bangladesh. Rangpur Dinajpur Rural Service, 1991.