TY - RPRT TI - Results of a survey of U.S. Fish and Wildlife Service Endangered Species and Ecological Services Field Offices, Refuges, Hatcheries, and Research Centers AU - Douglas N. Gladwin AU - Duane A. Asherin AU - Karen M. Manci PY - 1988 UR - https://pubs.usgs.gov/publication/70122691 ID - 70122691 ER -