Παραπομπή σε μορφή APA (7η εκδ.)

Atampugre, N. (1993). Behind the lines of stone: The social impact of a soil and water conservation project in the Sahel. Oxfam.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Atampugre, Nicholas. Behind the Lines of Stone: The Social Impact of a Soil and Water Conservation Project in the Sahel. Oxford: Oxfam, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Atampugre, Nicholas. Behind the Lines of Stone: The Social Impact of a Soil and Water Conservation Project in the Sahel. Oxfam, 1993.