Heppner, P. P. (2008). Research design in counseling. Belmont, CA: Thomson Brooks/Cole.
Style de citation ChicagoHeppner, P. Paul. Research Design in Counseling. Belmont, CA: Thomson Brooks/Cole, 2008.
Style de citation MLAHeppner, P. Paul. Research Design in Counseling. Belmont, CA: Thomson Brooks/Cole, 2008.
Attention : ces citations peuvent ne pas être correctes à 100%.