International conference for the psychology of mathematics education :Grenoble & International group for the psychology of mathematics education. (1981). Psychology of mathematics education: Actes du cinquième colloque du Groupe international = = proceedings of the fifth conference of the International group : Grenoble, France, 13-18 juillet 1981. Laboratoire I.M.A.G.
Citace podle Chicago (17th ed.)International conference for the psychology of mathematics education :Grenoble a International group for the psychology of mathematics education. Psychology of Mathematics Education: Actes Du Cinquième Colloque Du Groupe International = = Proceedings of the Fifth Conference of the International Group : Grenoble, France, 13-18 Juillet 1981. Grenoble, France: Laboratoire I.M.A.G, 1981.
Citace podle MLA (8th ed.)International conference for the psychology of mathematics education :Grenoble a International group for the psychology of mathematics education. Psychology of Mathematics Education: Actes Du Cinquième Colloque Du Groupe International = = Proceedings of the Fifth Conference of the International Group : Grenoble, France, 13-18 Juillet 1981. Laboratoire I.M.A.G, 1981.