National Park Service / Federal Government / COLORADO STATE UNIVERSITY / Texas A&M / U.S. government / National Oceanic and Atmospheric Administration / Water Resources Division / Environmental Protection Agency / /
Person
ROY J. IRWIN / L. Stevens / Aquatic Biota / MARK VAN MOUWERIK LYNETTE STEVENS MARION / LYNETTE STEVENS MARION DUBLER SEESE WENDY / Tom McDonald / Bill Stubblefield / /
Position
author / original author / General / ASSISTANT / Acrobat / /