TY - RPRT TI - Periphyton communities in streams of the Ozark Plateaus and their relations to selected environmental factors AU - James C. Petersen AU - Suzanne R. Femmer PY - 2003 DO - 10.3133/wri024210 UR - https://pubs.usgs.gov/publication/wri024210 ID - wri024210 ER -