Olofson, H. (1997). Context is sovereign: Thoughts on indigenous agricultural knowledge in Upland Cebu, or, bringing history and society back in. Philippine Quarterly of Culture & Society.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Olofson, Harold. "Context Is Sovereign: Thoughts on Indigenous Agricultural Knowledge in Upland Cebu, or, Bringing History and Society Back in." Philippine Quarterly of Culture & Society 1997.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Olofson, Harold. "Context Is Sovereign: Thoughts on Indigenous Agricultural Knowledge in Upland Cebu, or, Bringing History and Society Back in." Philippine Quarterly of Culture & Society, 1997.
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