APA-viite (7. p.)

Ahmad, Y. J., & Kassas, M. (1987). Desertification: Financial support for the biosphere. Kumarian Press.

Chicago-viite (17. p.)

Ahmad, Yusuf J., ja Mohammed Kassas. Desertification: Financial Support for the Biosphere. West Hartford, CT: Kumarian Press, 1987.

MLA-viite (9. p.)

Ahmad, Yusuf J., ja Mohammed Kassas. Desertification: Financial Support for the Biosphere. Kumarian Press, 1987.