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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Vocational Aspect of Education. Wallingford [Eng., etc.]: Triangle Journals, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe Vocational Aspect of Education. Triangle Journals, 1994.
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