APA (7th ed.) Citation

Sheldon, C., & Yoxon. (2006). Environmental management systems: A step-by-step guide to implementation and maintenance (Third Edition.). Earthscan.

Chicago Style (17th ed.) Citation

Sheldon, Christopher, and Yoxon. Environmental Management Systems: A Step-by-step Guide to Implementation and Maintenance. Third Edition. London,Sterling, VA: Earthscan, 2006.

MLA (8th ed.) Citation

Sheldon, Christopher, and Yoxon. Environmental Management Systems: A Step-by-step Guide to Implementation and Maintenance. Third Edition. Earthscan, 2006.