United States geological survey yearbook fiscal year 1990
Date
1990
Authors
U.S. Geological Survey.
Journal Title
Journal ISSN
Volume Title
Publisher
U.S. Geological Survey
Abstract
The accomplishments of the U.S. Geological Survey for 1990 are described in this report.
Description
108 pgs.
Keywords
flooding, nonpoint source pollution, herbicides, toxicants, atrazine, geology, research