Cold Air Drain
1. Assessor’s Handbook Section 534: Rural Building Costs. January 2010. California State Board of Equalization.
2. Jackson, L.K. and Parsons, L.R. June 1994. "Cold Protection Methods". Fact Sheet HS-121. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida.
3. Tyson, Anthony W., et al."Frost/Freeze Protection by Sprinkler Irrigation". Southern Region Small Fruit Consortium.
4. Rikan Aeromarine, LTD. June 2004. A Comparative Study of FROST BOSS and ORCHARD RITE Wind Machine Fans.
5. City of Calistoga. 2003. "2003 General Plan: Noise Element." Online. 17 July 2010.