(1974). The Filipino people: Differentiation and distribution based on linguistic, cultural and racial criteria. National Museum.
Παραπομπή σε μορφή Chicago (17η εκδ.)The Filipino People: Differentiation and Distribution Based on Linguistic, Cultural and Racial Criteria. Manila: National Museum, 1974.
Παραπομπή σε μορφή MLA (9th εκδ.)The Filipino People: Differentiation and Distribution Based on Linguistic, Cultural and Racial Criteria. National Museum, 1974.
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