Anderson Jock R Ed. <br/><br/>
Variablity in grain yields    Implications for agri    
Anderson Jock R Ed.; Hazell Peter B R Ed. 
 - Baltimore  John Hopkins university press         1989 
 - xix, 395p. Bib p 357-80.  cm. 
<br/><br/> International food policy research institute. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wheat
<br/><br/><label>Dewey Class. No.: </label>X9(J382).1(X).N8, M9