Angell, D., Angell, D., Comer, J., & Wilkinson, M. (1990). Sustaining earth: Response to the environmental threats. Macmillan.
Chicago Style (17th ed.) CitationAngell, D.J.R., D.J.R Angell, J.D Comer, and M.L.N Wilkinson. Sustaining Earth: Response to the Environmental Threats. London: Macmillan, 1990.
MLA (9th ed.) CitationAngell, D.J.R., et al. Sustaining Earth: Response to the Environmental Threats. Macmillan, 1990.
Warning: These citations may not always be 100% accurate.