APA Citatie

Gibson, R. L., & Mitchell, M. H. (1990). Introducing to counselling and guidance (3.).

Chicago Style citaat

Gibson, Robert L., en Marianne H. Mitchell. Introducing to Counselling and Guidance. 3. New York, MacMillan Publishing Company, 1990.

MLA citatie

Gibson, Robert L., en Marianne H. Mitchell. Introducing to Counselling and Guidance. 3. 1990.