APA
Waddington D. V., Carrow R. N., Shearman R. C., Crop Science Society of America. Crop Science Society of America. CSSA, Soil Science Society of America. Soil Science Society of America. SSSA & American Society of Agronomy. American Society of Agronomy. ASA. (1992). Turfgrass. Madison, WI: American Society of Agronomy; Crop Science Society of America; Soil Science Society of America.
Chicago
Waddington Donald V, Carrow Robert N, Shearman Robert C, Crop Science Society of America. Crop Science Society of America. CSSA, Soil Science Society of America. Soil Science Society of America. SSSA and American Society of Agronomy. American Society of Agronomy. ASA. 1992. Turfgrass. Madison, WI: American Society of Agronomy; Crop Science Society of America; Soil Science Society of America.
Harvard
Waddington D. V., Carrow R. N., Shearman R. C., Crop Science Society of America. Crop Science Society of America. CSSA, Soil Science Society of America. Soil Science Society of America. SSSA and American Society of Agronomy. American Society of Agronomy. ASA. (1992). Turfgrass. Madison, WI: American Society of Agronomy; Crop Science Society of America; Soil Science Society of America.
MLA
Waddington Donald V, Carrow Robert N, Shearman Robert C, Crop Science Society of America. Crop Science Society of America. CSSA, Soil Science Society of America. Soil Science Society of America. SSSA and American Society of Agronomy. American Society of Agronomy. ASA. Turfgrass. Madison, WI: American Society of Agronomy; Crop Science Society of America; Soil Science Society of America. 1992.