APA (7th ed.) Citation

United States. Department of Agriculture & National Turfgrass Evaluation Program (U.S.). (1994). National bentgrass test, 1989 (modified soil-green): Progress report 1993. National Turfgrass Evaluation Program.

Chicago Style (17th ed.) Citation

United States. Department of Agriculture and National Turfgrass Evaluation Program (U.S.). National Bentgrass Test, 1989 (modified Soil-green): Progress Report 1993. Beltsville, Md.: National Turfgrass Evaluation Program, 1994.

MLA (9th ed.) Citation

United States. Department of Agriculture and National Turfgrass Evaluation Program (U.S.). National Bentgrass Test, 1989 (modified Soil-green): Progress Report 1993. National Turfgrass Evaluation Program, 1994.