TY - BOOK AU - Mager, Robert F. TI - Preparing Instructional Objectives: A critical tool in the development of effective instruction SN - 1879618036 AV - LB 1027.4 .M34 1997 PY - 1997/// CY - Atlanta PB - The Center for Effective Performance KW - Lesson planning KW - Education-Aims and objectives ER -