Não informado. (1964). Philippine Journal of Plant Industry. U.S. Department of Agriculture, Bureau of Plant Industry.
Chicago-referens (17:e uppl.)Não informado. Philippine Journal of Plant Industry. Manila: U.S. Department of Agriculture, Bureau of Plant Industry, 1964.
MLA-referens (8:e uppl.)Não informado. Philippine Journal of Plant Industry. U.S. Department of Agriculture, Bureau of Plant Industry, 1964.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.