1. • Introduction to Environmental Geology (Required)

   • 5th edition
   • ISBN: 9780321941282
   • Author: KELLER
   • Estimated Price: $61.00 (new)
   • Used Retail Price is $0.00; eBook type is Hybrid; eBook format is VitalSource Bookshelf;

2. • Intro to Env Geology (w/Access Code) (Required)

   • 5th edition
   • ISBN: 9780321727510
   • Author: Keller
   • Estimated Price: $253.75 (new)
   • Used Retail Price is $190.50;