Citazione APA

Nelson-jones, R. (2008). Basic counselling skills: A helper's manual (2,3.). Sage.

Stile di citazione Chicago

Nelson-jones, Richard. Basic Counselling Skills: A Helper's Manual. 2,3. Los Angeles: Sage, 2008.

Citazione MLA

Nelson-jones, Richard. Basic Counselling Skills: A Helper's Manual. 2,3. Sage, 2008.