TY - BOOK AU - Enger,Eldon D. TI - Environmental science : a study of interrelationships SN - 0697286568 (pbk) U1 - 363.7 PY - 1998/// CY - USA PB - McGraw Hill KW - Environmental sciences KW - Environmental ethics KW - Ecological principles KW - Energy KW - Ecosystem KW - Pollution and policy KW - Environmental interrelationships KW - IIMC KW - PRH N1 - Includes index ER -