http://pec.lib.wvu.edu/record/P95701962Information about … bee culture.Pamphlet. "ARS-33-10-3". "The following publication, prepared by the U. S. Department of Agriculture has been reproduced by: West Virginia Department of Agriculture, Gus R. Douglass, Commission, Charleston, W. Va. …"United States. Entomology Research Division.Honeybee--United States.Bee culture--United States.14256