TY - RPRT TI - Periphyton and Macroinvertebrate Communities at Five Sites in the San Joaquin River Basin, California, during June and September, 2001 AU - Larry R. Brown AU - Jason T. May PY - 2004 DO - 10.3133/sir20045098 UR - https://pubs.usgs.gov/publication/sir20045098 ID - sir20045098 ER -