Enger, Eldon D. Field and laboratory exercises in environmental science / Eldon D. Enger ; Bradley F. Smith & Karen E. Lionberger. - 8th ed. - New York, NY : McGraw-Hill Education, 2013 Includes appendix. ISBN: 9780077599829 (pbk.) LCCN: 81025288 Subjects--Topical Terms: Environmental sciences--Textbooks. LC Class. No.: GE105 / .C86 2015 Dewey Class. No.: 333.70724 / ENG