Groot, Hans Cornelis,  1939- <br/><br/>
Coorientation and technological change  communication variables in perceptions of "miracle rice" in the Philippines /  [microform]  : 
Hans Cornelis Groot 
 - Ann Arbor, Mich. :  University Microfilms International,  1970 
 - 1 microfilm reel :  positif ;  35 mm. 
<br/><br/>Thesis (Ph.D.) - University of Wisconsin, 1970 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural development projects