New trends in integrated science teaching : Vol. 1. 1969-70 / edited by P. E. Richmond. Tendances nouvelles de l'integration des enseignements scientifiques 1969/70 Unesco. Science Study and teaching. Interdisciplinary approach in education. Q181.A1 N48 507 UNN Vol. for 1969/70 has parallel title: Tendances nouvelles de l'integration des enseignements scientifiques. Paris : Unesco, 1971- 1971- 1970 Text Collection v. : eng engfre English and French, 1969/70; in English, 1973-<77> Teaching of basic sciences The Teaching of basic sciences Teaching of basic sciences