APA (7th ed.) Citation

Edwards, C. A., Lal, R., & Madden, P. (1990). Sustainable agricultural systems. St. Lucie Press.

Chicago Style (17th ed.) Citation

Edwards, Clive A., Rattan Lal, and Patrick Madden. Sustainable Agricultural Systems. Florida: St. Lucie Press, 1990.

MLA (8th ed.) Citation

Edwards, Clive A., et al. Sustainable Agricultural Systems. St. Lucie Press, 1990.