World Health Organization / National Park Service / Federal Government / COLORADO STATE UNIVERSITY / Texas A&M / U.S. government / National Biological Service / National Oceanic and Atmospheric Administration / Water Resources Division / Department of Health and Human Services / Environmental Protection Agency / International Agency for Research / /
Person
ROY J. IRWIN / L. Stevens / MARK VAN MOUWERIK LYNETTE STEVENS MARION / LYNETTE STEVENS MARION DUBLER SEESE WENDY / /
Position
author / original author / General / ASSISTANT / Acrobat / /