Iowa High Tunnel Fruit and Vegetable Production Manual Iowa State University 2017 https://store.extension.iastate.edu/product/13342 Minnesota High Tunnel Production Manual for Commercial Growers University of Minnesota 2012 University of Minnesota hightunnels.cfans.umn.edu/minnesota-high-tunnel-production-manual/ Four Season Harvest: Organic Vegetables from Your Home Garden All Year Long Eliot Coleman 1999, 212 pages Chelsea
