Hobby Horticulture Aldrich, R. A. et al. 1976. Ellwood, C. 1977. How to build and operate your greenhouse. H.P. Books, P. O. Box 5367, Tucson, AZ 85703. Pierce, J. H. 1977.
Greenhouse grow how.
Plants Alive, Seattle. Professional Workers in State Agricultural Experiment Stations and Other Cooperating Institutions. Superintendent of Documents, U.S. Govt. Printing Office, Washington, DC 20402. This list of resources was created by Thomas C. Weiler and is updated annually.