HUMMEL, D. L., & BOHMAN, S. (1968). Pupil personnel services in schools: Organization andcoordination. Rand McNally and Co.
Citazione stile Chigago Style (17a edizione)HUMMEL, Dean L., e S.J BOHMAN. Pupil Personnel Services in Schools: Organization Andcoordination. Chicago: Rand McNally and Co, 1968.
Citatione MLA (9a ed.)HUMMEL, Dean L., e S.J BOHMAN. Pupil Personnel Services in Schools: Organization Andcoordination. Rand McNally and Co, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.