Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service) & Obi, A. (2011). Institutional constraints to small farmer development in Southern Africa. Wageningen Academic Publishers : Imprint: Wageningen Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service) και Ajuruchukwu Obi. Institutional Constraints to Small Farmer Development in Southern Africa. Wageningen: Wageningen Academic Publishers : Imprint: Wageningen Academic Publishers, 2011.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service) και Ajuruchukwu Obi. Institutional Constraints to Small Farmer Development in Southern Africa. Wageningen Academic Publishers : Imprint: Wageningen Academic Publishers, 2011.