Parker, Laurence, 1880- The conference method of instruction in trade and industrial education, by Laurence Parker. - Topeka, Kansas State board for vocational education, 1929. - 103 p. incl. tables, diagrs., forms. 23 cm. "Literature cited": p. 94. LCCN: e 29000253 Subjects--Topical Terms: Supervisors, Industrial.Industrial efficiency.Factory management. LC Class. No.: TS155 / .P3