Lumayag, E. J. (1982). Contractual arrangement in abaca production in some selected villages in the Philippines [microform]. University of the Philippines Library.
Παραπομπή σε μορφή Chicago (17η εκδ.)Lumayag, Eutiquio J. Contractual Arrangement in Abaca Production in Some Selected Villages in the Philippines [microform]. Quezon City: University of the Philippines Library, 1982.
Παραπομπή σε μορφή MLA (9th εκδ.)Lumayag, Eutiquio J. Contractual Arrangement in Abaca Production in Some Selected Villages in the Philippines [microform]. University of the Philippines Library, 1982.
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