TY - RPRT TI - Environmental contaminants in Texas, USA, wetland reptiles: Evaluation using blood samples AU - D. R. Clark AU - J. W. Bickham AU - D.L. Baker AU - D.F. Cowman PY - 2000 DO - 10.1002/etc.5620190916 UR - https://pubs.usgs.gov/publication/70023153 ID - 70023153 ER -