Planas, T. (1975). Some aspects of exporting Philippine ginger. Special Studies Division, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources.
Chicago-referens (17:e uppl.)Planas, T.A. Some Aspects of Exporting Philippine Ginger. Quezon City: Special Studies Division, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources, 1975.
MLA-referens (9:e uppl.)Planas, T.A. Some Aspects of Exporting Philippine Ginger. Special Studies Division, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources, 1975.
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