New trends in biology teaching =
Subtitle: Tendances nouvelles de l'enseignement de la biologie
By: prepared by R. Heller. Vol.3.
Contributors: Heller, R.; Unesco.
Series: The teaching of basic sciences = -- L'enseiguement des sciences foundamentalos; The teaching of basic sciences
Publisher: Unesco
Published: 1971
Place of publication: Paris
Language: mul