Gillon, E. (2007). Person-centred counselling psychology: An introduction. Sage.
Cita Chicago (17th ed.)Gillon, Ewan. Person-centred Counselling Psychology: An Introduction. Los Angeles: Sage, 2007.
Cita MLA (9th ed.)Gillon, Ewan. Person-centred Counselling Psychology: An Introduction. Sage, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.