Cita APA (7a ed.)

ebrary, Inc, Ferguson, R., Pence, A. R., & Denholm, C. J. (1993). Professional child and youth care (2nd ed.). UBC Press.

Cita Chicago Style (17a ed.)

ebrary, Inc, Roy Ferguson, Alan R. Pence, y Carey J. Denholm. Professional Child and Youth Care. 2nd ed. Vancouver: UBC Press, 1993.

Cita MLA (9a ed.)

ebrary, Inc, et al. Professional Child and Youth Care. 2nd ed. UBC Press, 1993.