Philippine Sugar Institute. Library. Research studies undertaken by Philsugin. The Library, PHILSUGIN.
Παραπομπή σε μορφή Chicago (17η εκδ.)Philippine Sugar Institute. Library. Research Studies Undertaken by Philsugin. Quezon City: The Library, PHILSUGIN.
Παραπομπή σε μορφή MLA (9th εκδ.)Philippine Sugar Institute. Library. Research Studies Undertaken by Philsugin. The Library, PHILSUGIN.
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