Santos, O. L. (1968). A cross section analysis of technical manpower in transportation and commerce: Manila labor market area, 1965.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSantos, Onofre L. A Cross Section Analysis of Technical Manpower in Transportation and Commerce: Manila Labor Market Area, 1965. 1968.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSantos, Onofre L. A Cross Section Analysis of Technical Manpower in Transportation and Commerce: Manila Labor Market Area, 1965. 1968.
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