TY - BOOK AU - Heppner,P.Paul AU - Kivlighan,Dennis M. AU - Wampold,Bruce E. TI - Research design in counseling SN - 9780534523480 (hbk.) PY - 2008/// CY - Belmont, CA. PB - Brooks/Cole, Cengage Learning KW - Counseling KW - Research KW - Methodology N1 - References : p. 621-654 ER -