Miller, G. T., & Spoolman, S. E. (2009). Introduction to Environmental Science (Indian Ed.). Brooks/Cole Cengage Learning.

Miller, G. Tyler, and Scott E. Spoolman. Introduction to Environmental Science. Indian Ed. Belmont, CA ; New Delhi: Brooks/Cole Cengage Learning, 2009.

Miller, G. Tyler, and Scott E. Spoolman. Introduction to Environmental Science. Indian Ed. Brooks/Cole Cengage Learning, 2009.