1. Becoming a helper Corey, Marianne Schneider, 1942- Boston, MA : Cengage Learning, 2019, c2021. SW202 SW201 MPT502
2. Groups: process and practice Corey, Marianne Schneider, 1942- San Francisco, CA : Cengage Learning, c2018 CP514
3. Becoming a helper Corey, Marianne Schneider, 1942- Boston, Massachusetts : Cengage, [2021] SW202 Online view
