Pablo, F., Sheldon, K. P., & Yap, O. D. Industrial survey report for the province of Zamboanga del Sur, February 1961.
Chicago Style aipamenaPablo, Fidelino, Kenneth P. Sheldon, and Orlando D. Yap. Industrial Survey Report for the Province of Zamboanga Del Sur, February 1961.
MLA aipamenaPablo, Fidelino, et al. Industrial Survey Report for the Province of Zamboanga Del Sur, February 1961.
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