374 Adv A Advances in research and practice in self-directed learning / Huey B. Long and associates. -- Oklahoma : Oklahoma Research Center, c1990. viii,293 p. : diagrs., tabs. : 24 cm. ´´References´´: p. 292-293. ISBN 0-9622488-2-7 1.EDUCACION DE ADULTOS 2.ENSEÑANZA 3. APRENDIZAJE