Gibson, R. L. (2005). Introduction to counseling and guidance (6th ed.). Pearson Education.
Chicago ZitierstilGibson, Robert L. Introduction to Counseling and Guidance. 6th ed. Delhi: Pearson Education, 2005.
MLA ZitierstilGibson, Robert L. Introduction to Counseling and Guidance. 6th ed. Pearson Education, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.