Duggar, B. M., & United States. Bureau of Plant Industry. (1905). The principles of mushroom growing and mushroom spawn making. G.P.O..
MLA CitationDuggar, Benjamin M., and United States. Bureau of Plant Industry. The Principles of Mushroom Growing and Mushroom Spawn Making. G.P.O., 1905.
Warning: These citations have been automatically generated and may not always be 100% accurate..