Zotarelli, L., P. J. Dittmar, N. S. Dufault, B. Wells, J. Desaeger, E. J. McAvoy, Q. Wang, and C. F. Miller. “2020–2021 Vegetable Production Handbook: Chapter 6. Cole Crop Production: HS724/CV122, Rev. 4/2020”. EDIS, vol. 2020, no. VPH, Oct. 2020, doi:10.32473/edis-cv122-2020.