APA Citation

Allen, M. K. T. s. a. e. b. R. L. a. P. Earth matters environmental challenges for the 1980s. United Nations Environment Programme.

Chicago Style Citation

Allen, Mostafa Kamal Tolba selected and edited by Robert Lamb and Patrck. Earth Matters Environmental Challenges for the 1980s. United Nations Environment Programme.

MLA Citation

Allen, Mostafa Kamal Tolba selected and edited by Robert Lamb and Patrck. Earth Matters Environmental Challenges for the 1980s. United Nations Environment Programme.

Warning: These citations may not always be 100% accurate.