Philippines (Republic) Bureau of Plant Industry. (1956). Two and a half decades of public service to Philippine agriculture. Bureau of Print.
Chicago-referens (17:e uppl.)Philippines (Republic) Bureau of Plant Industry. Two and a Half Decades of Public Service to Philippine Agriculture. Manila: Bureau of Print, 1956.
MLA-referens (9:e uppl.)Philippines (Republic) Bureau of Plant Industry. Two and a Half Decades of Public Service to Philippine Agriculture. Bureau of Print, 1956.
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