HUMMEL, D. L., & BOHMAN, S. (1968). Pupil personnel services in schools: Organization andcoordination. Rand McNally and Co.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHUMMEL, Dean L., और S.J BOHMAN. Pupil Personnel Services in Schools: Organization Andcoordination. Chicago: Rand McNally and Co, 1968.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHUMMEL, Dean L., और S.J BOHMAN. Pupil Personnel Services in Schools: Organization Andcoordination. Rand McNally and Co, 1968.
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