HUMMEL, D. L., & BOHMAN, S. (1968). Pupil personnel services in schools: Organization andcoordination. Rand McNally and Co.
Lua i Stíl Chicago (17ú heag.)HUMMEL, Dean L., agus S.J BOHMAN. Pupil Personnel Services in Schools: Organization Andcoordination. Chicago: Rand McNally and Co, 1968.
Lua MLA (9ú heag.)HUMMEL, Dean L., agus S.J BOHMAN. Pupil Personnel Services in Schools: Organization Andcoordination. Rand McNally and Co, 1968.
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