TY - BOOK AU - Nebel,Bernard J. TI - Environmental Science: The way the World Works SN - 0132822032 AV - QH541 .N39 1990 PY - 1990/// CY - Englewood Cliffs, NJ PB - Prentice Hall KW - Ecology KW - Environmental sciences N1 - Colored maps of Some steps toward environmental progress, Some threats to the environment on endpapers; Includes Bibliographical References and Index ER -