TY - BOOK AU - Killion, Joellen ED - National Staff Development Council (U.S.) TI - Assessing impact : evaluating staff development SN - 9781412953559 U1 - 370.7155 KIL PY - 2008/// CY - Thousand Oaks, CA PB - Corwin Press KW - Teachers - In-service training N1 - Includes bibliographical reference and index ER -