APA (7e ed.) Bronvermelding

Levitt, K. L., & Wharf, B. (1985). The Challenge of child welfare. University of British Columbia Press.

Chicago (17e ed.) Bronvermelding

Levitt, Kenneth L., en Brian Wharf. The Challenge of Child Welfare. Vancouver: University of British Columbia Press, 1985.

MLA (8e ed.) Bronvermelding

Levitt, Kenneth L., en Brian Wharf. The Challenge of Child Welfare. University of British Columbia Press, 1985.