W Knecht New trends in physics teaching=Tendances nouvelles de l'enseignement de la physique (1965-1966) - Paris Unesco, 1968 - 271p 27cm - Teaching of basic sciences. Vol I . LCCN: 673390 Subjects--Uniform Titles: PhysicsStudy and teaching. Fisica Geral. PhysiqueÉtude et enseignement. Dewey Class. No.: 530.7 U56n