TY - GEN AU - Enger,Eldon D. AU - Smith,Bradley F. TI - Field and laboratory exercises in environmental science SN - 9780077599829 (pbk.) AV - GE105 .C86 2015 U1 - 333.70724 PY - 2013/// CY - New York, NY PB - McGraw-Hill Education KW - Environmental sciences KW - Textbooks N1 - Includes appendix ER -