Cita APA (7th ed.)

ebrary, Inc, Connor, C., Lofthouse, B., Southworth, G., & Dadds, M. (1990). Perspectives (2nd ed.). Falmer Press.

Cita Chicago (17th ed.)

ebrary, Inc, Colin Connor, Brenda Lofthouse, Geoff Southworth, i Marion Dadds. Perspectives. 2nd ed. London ; New York: Falmer Press, 1990.

Cita MLA (9th ed.)

ebrary, Inc, et al. Perspectives. 2nd ed. Falmer Press, 1990.