Παραπομπή σε μορφή APA (7η εκδ.)

Abdalla, I. F. (2012). Socioeconomic aspects of urban and peri-urban agriculture: A diagnostic study in Khartoum, Sudan. Kassel University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Abdalla, Ishtiag Faroug. Socioeconomic Aspects of Urban and Peri-urban Agriculture: A Diagnostic Study in Khartoum, Sudan. Kassel: Kassel University Press, 2012.

Παραπομπή σε μορφή MLA (9th εκδ.)

Abdalla, Ishtiag Faroug. Socioeconomic Aspects of Urban and Peri-urban Agriculture: A Diagnostic Study in Khartoum, Sudan. Kassel University Press, 2012.