Cottle, W. C. (1968). Interest and personality inventories. Houghton Mifflin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCottle, William C. Interest and Personality Inventories. Boston: Houghton Mifflin, 1968.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCottle, William C. Interest and Personality Inventories. Houghton Mifflin, 1968.
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