APA (7e ed.) Bronvermelding

HUMMEL, D. L., & BOHMAN, S. (1968). Pupil personnel services in schools: Organization andcoordination. Rand McNally and Co.

Chicago (17e ed.) Bronvermelding

HUMMEL, Dean L., en S.J BOHMAN. Pupil Personnel Services in Schools: Organization Andcoordination. Chicago: Rand McNally and Co, 1968.

MLA (9e ed.) Bronvermelding

HUMMEL, Dean L., en S.J BOHMAN. Pupil Personnel Services in Schools: Organization Andcoordination. Rand McNally and Co, 1968.