The further training of mathematics teachers at secondary level report of a meeting of international experts Vesselo, I.R creator (autor) text dictionary ^^^ 1968 monographic eng 85 p. XX Docentes Enseñanza de las matemáticas Formación de docentes Educación secundaria 371.192 V172f Acervo ITESO - Biblioteca 050901 20250521000000.0 000490274