TY - BOOK AU - Mager,Robert F. AU - Beach,Kennth M. TI - Developing vocational instruction SN - 0822420600 AV - LC1043 M333D PY - 1967/// CY - Belmont, Calif. PB - Lake Management and Training KW - VOCATIONAL EDUCATION KW - STUDY AND TEACHING N1 - Includes bibliographical ER -