Cita APA

Ahmad, Y. J., & Sammy, G. K. (1985). Guidelines to environmental impact assessment in developing countries. London: United Nations Environment Programme.

Citación estilo Chicago

Ahmad, Yusuf J., y G. K. Sammy. Guidelines to Environmental Impact Assessment in Developing Countries. London: United Nations Environment Programme, 1985.

Cita MLA

Ahmad, Yusuf J., y G. K. Sammy. Guidelines to Environmental Impact Assessment in Developing Countries. London: United Nations Environment Programme, 1985.