APA

Levitt Kenneth L, Wharf Brian, . (1985). The Challenge of child welfare. Vancouver: University of British Columbia Press.

Chicago

Levitt Kenneth L, Wharf Brian, . 1985. The Challenge of child welfare. Vancouver: University of British Columbia Press.

Harvard

Levitt Kenneth L, Wharf Brian, . (1985). The Challenge of child welfare. Vancouver: University of British Columbia Press.

MLA

Levitt Kenneth L, Wharf Brian, . The Challenge of child welfare. Vancouver: University of British Columbia Press. 1985.