Cita APA (7th ed.)

Ahmad, Y. J., Filho, A., & Khan, T. (1993). Communicating environmental risks. Earthscan.

Cita Chicago (17th ed.)

Ahmad, Yusuf J., Alvaro Filho, i Tariq Khan. Communicating Environmental Risks. London: Earthscan, 1993.

Cita MLA (9th ed.)

Ahmad, Yusuf J., et al. Communicating Environmental Risks. Earthscan, 1993.