http://nrrl.ncaur.usda.gov/ USDA-ARS Microbial Culture Collection (NRRL) NRRL culture collection NRRL USDA NRRL http://nrrl.ncaur.usda.gov/ USDA-ARS Microbial Culture Collection (NRRL) NRRL USDA NRRL Collection ARS Culture Collection Northern Regional Research Laboratory U.S. Dept. of Agriculture (USDA) ARS Microbial Germplasm Resource (NRRL) Northern Regional Research Laboratory http://nrrl.ncaur.usda.gov/ U.S. Dept. of Agriculture (USDA) NRRL repository at the NCAUR http://nrrl.ncaur.usda.gov Information about this collection is available online Agricultural Research Service Culture Collection (NRRL) Agricultural Research Service Culture Collection (NRRL) USDA (NRRL) Culture Collection ARS/NRRL USDA Agricultural Research Service Culture Collection USDA ARS Culture Collection http://nrrl.ncaur.usda.gov NRRL http://nrrl.ncaur.usda.gov/ http://nrrl.ncaur.usda.gov