TY - BOOK AU - Enger,Eldon D. AU - Smith,Bradley F. TI - Environmental science: a study of interrelationships SN - 069715906X U1 - 333.7 19 PY - 1995/// CY - Dubuque, IA PB - Wm. C. Publishers KW - Environment protection KW - Spines N1 - env N2 - Environment Management ER -