Searle,Barbara  <br/><br/>
The radio mathematics project :  Nicaragua 1974 - 1975  Libro 
Bárbara Searle, Jamesine Friend, Patrick Suppes. 
 - California, USA :  Institute for mathematical studies in the social sciences - Stanford University,  1976. 
 - xiv, 261 p. ;  23 cm. 
<br/><br/> Catalogación preliminar.