Gibson, R. L. (2005). Introduction to counseling and guidance (6th ed.). Pearson Education.
Stile di citazione ChicagoGibson, Robert L. Introduction to Counseling and Guidance. 6th ed. Delhi: Pearson Education, 2005.
Citazione MLAGibson, Robert L. Introduction to Counseling and Guidance. 6th ed. Pearson Education, 2005.
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