Wiechel, Lennart. <br/><br/>
Sex-role perception as a barrier to cooperation :  assessment techniques and programs of educational influence. 

 - Malmo :  Dept. of Educational & Psychological Research, School of Education,  1973. 
 - Educational and psychological interactions ;  no. 41 .
<br/><br/>Bibliography: p. 6. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sex role.<br/>Sex differences (Psychology)