United States. Department of Agriculture, National Turfgrass Evaluation Program (U.S.), & National Turfgrass Federation. (1998). National Kentucky bluegrass test-1995: Low input : progress report 1997. U.S. Dept. of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center.
Chicago Style (17th ed.) CitationUnited States. Department of Agriculture, National Turfgrass Evaluation Program (U.S.), and National Turfgrass Federation. National Kentucky Bluegrass Test-1995: Low Input : Progress Report 1997. Beltsville, Md.: U.S. Dept. of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, 1998.
MLA (9th ed.) CitationUnited States. Department of Agriculture, et al. National Kentucky Bluegrass Test-1995: Low Input : Progress Report 1997. U.S. Dept. of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, 1998.