The further training of mathematics teachers at Secondary level :  report of a meeting of international experts, Hamburg, October 1968. / 
edited  by R. I. Vesselo. 
 - Hamburg :  Unesco Institute for Education,  1969. 
 - 85 p. ;  25 cm. 
 - International studies in education ;  22 .
<br/><br/>Includes bibliography. 
<br/><br/> Open access. 
<br/><br/><label>LCCN: </label>7185219  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Secondary)--Congresses.