David, C. C. (1982). Government policies and farm mechanization in the Philippines. Philippine Institute for Development Studies.
Παραπομπή σε μορφή Chicago (17η εκδ.)David, Cristina C. Government Policies and Farm Mechanization in the Philippines. [Makati, Metro Manila]: Philippine Institute for Development Studies, 1982.
Παραπομπή σε μορφή MLA (9th εκδ.)David, Cristina C. Government Policies and Farm Mechanization in the Philippines. Philippine Institute for Development Studies, 1982.
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