TY - RPRT TI - Biological monitoring of environmental quality: The use of developmental instability AU - D.C. Freeman AU - J.M. Emlen AU - J.H. Graham AU - R. A. Hough AU - T.A. Bannon PY - 1994 UR - https://pubs.usgs.gov/publication/70180361 ID - 70180361 ER -