Wall, William Douglas. Education and mental health / William Douglas Wall. - Paris : UNESCO , 1955. - 347 p. : 22 cm. - Unesco. Problems in education, 11. . LCCN: 56013901 Subjects--Topical Terms: Mental health. LC Class. No.: LB1131 / .W345 Dewey Class. No.: 370.15 / WAE 1955