Crane, Diana. <br/><br/>
Invisible colleges  diffusion of knowledge in scientific communities / 
Diana Crane. 
 - Chicago, Ill. :  University of Chicago Press,  1972. 
 - 213 p. :  ill. ;  22 cm. 
<br/><br/>p. 195-206 
<br/><br/><label>ISBN: </label>0226118576 
<br/><br/><label>LCCN: </label>77-182088 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Social aspects.