Buffington, D. E., R. A. Bucklin, R. W. Henley, and D. B. McConnell. (2002) 2018. “Fans For Greenhouses: AE12/AE020, 2/2008”. EDIS 2018 (2). Gainesville, FL. https://doi.org/10.32473/edis-ae020-2002.