Vergara, B. S. (1997). The development of a pure Makapuno tree: An adventure in research. National Academy of Science and Technology.
Chicago-viite (17. p.)Vergara, Benito S. The Development of a Pure Makapuno Tree: An Adventure in Research. Bicutan, Metro Manila: National Academy of Science and Technology, 1997.
MLA-viite (9. p.)Vergara, Benito S. The Development of a Pure Makapuno Tree: An Adventure in Research. National Academy of Science and Technology, 1997.
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