Παραπομπή σε μορφή APA (7η εκδ.)

El-Ahraf, A., Qayoumi, M. H., & Dowd, R. (1999). The impact of public policy on environmental quality and health: The case of land use managemnet and planning. Quorum.

Παραπομπή σε μορφή Chicago (17η εκδ.)

El-Ahraf, Amer, Mohammad H. Qayoumi, και Ron Dowd. The Impact of Public Policy on Environmental Quality and Health: The Case of Land Use Managemnet and Planning. Westport, Conn.: Quorum, 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

El-Ahraf, Amer, et al. The Impact of Public Policy on Environmental Quality and Health: The Case of Land Use Managemnet and Planning. Quorum, 1999.