Aday, B. A. (1977). Combining ability of ten introduced corn varieties. University of the Philippines Library.
Chicago-referens (17:e uppl.)Aday, Bliss Aquino. Combining Ability of Ten Introduced Corn Varieties. Quezon City: University of the Philippines Library, 1977.
MLA-referens (9:e uppl.)Aday, Bliss Aquino. Combining Ability of Ten Introduced Corn Varieties. University of the Philippines Library, 1977.
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