APA引文

Young, M. E. (2009). Learning the art of helping: Building blocks and techniques (4th ed.). Merrill/Pearson.

Chicago Style (17th ed.) Citation

Young, Mark E. Learning the Art of Helping: Building Blocks and Techniques. 4th ed. Upper Saddle River, N.J: Merrill/Pearson, 2009.

MLA引文

Young, Mark E. Learning the Art of Helping: Building Blocks and Techniques. 4th ed. Merrill/Pearson, 2009.