TY - RPRT TI - Dicofol (Kelthane®)-induced eggshell thinning in captive american kestrels AU - D. R. Clark AU - J. W. Spann AU - C.M. Bunck PY - 1990 DO - 10.1002/etc.5620090813 UR - https://pubs.usgs.gov/publication/5222425 ID - 5222425 ER -