Cita APA (7a ed.)

Johnson, P. (1999). Crucial skills: An anger management and problem solving teaching programme for high school students. Sage Publications.

Cita Chicago Style (17a ed.)

Johnson, Penny. Crucial Skills: An Anger Management and Problem Solving Teaching Programme for High School Students. London: Sage Publications, 1999.

Cita MLA (9a ed.)

Johnson, Penny. Crucial Skills: An Anger Management and Problem Solving Teaching Programme for High School Students. Sage Publications, 1999.