Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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