Παραπομπή σε μορφή APA (7η εκδ.)

Hammer, T. (1983). Wood for fuel: Energy crisis implying desertification, the case of Bara, the Sudan. Chr. Michelsen Institute, Development Research and Action Programme.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hammer, Turi. Wood for Fuel: Energy Crisis Implying Desertification, the Case of Bara, the Sudan. Bergen, Norway: Chr. Michelsen Institute, Development Research and Action Programme, 1983.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hammer, Turi. Wood for Fuel: Energy Crisis Implying Desertification, the Case of Bara, the Sudan. Chr. Michelsen Institute, Development Research and Action Programme, 1983.