Tilde, A. C., & Payawal, P. C. (1992). Commercial honey in the Philippines I. pollen grains analysis. Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist).
Chicago Style (17. basım) AtıfTilde, Aurora C., ve Pacifico C. Payawal. "Commercial Honey in the Philippines I. Pollen Grains Analysis." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) 1992.
MLA (9th ed.) AtıfTilde, Aurora C., ve Pacifico C. Payawal. "Commercial Honey in the Philippines I. Pollen Grains Analysis." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist), 1992.
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