Παραπομπή σε μορφή APA (7η εκδ.)

Barnett, A., Pyle, L., & Subramanian, S. K. (1978). Biogas technology in the Third World: A multidisciplinary review. International Development Research Centre.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Barnett, Andrew, Leo Pyle, και S. K. Subramanian. Biogas Technology in the Third World: A Multidisciplinary Review. Canada: International Development Research Centre, 1978.

Παραπομπή σε μορφή MLA (8th εκδ.)

Barnett, Andrew, et al. Biogas Technology in the Third World: A Multidisciplinary Review. International Development Research Centre, 1978.