TY - RPRT TI - Effects of industrial effluents, heavy metals, and organic solvents on mallard embryo development AU - D. J. Hoffman AU - W. C. Eastin PY - 1981 DO - 10.1016/0378-4274(81)90171-5 UR - https://pubs.usgs.gov/publication/5221679 ID - 5221679 ER -