TY - RPRT TI - Reproduction and residue accumulation in black ducks fed toxaphene AU - S. D. Haseltine AU - M. T. Finley AU - E. Cromartie PY - 1980 DO - 10.1007/bf01055298 UR - https://pubs.usgs.gov/publication/5221598 ID - 5221598 ER -