Ashok Kumar <br/><br/>
Time series analysis of crop production and productivity : A study of wheat, rice and cotton in the Punjab since 1950-51 

 -  Panjab University  1977 
 - 114 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cotton--Punjab<br/>Time-Series analysis<br/>Rice--Punjab<br/>Wheat--Punjab
<br/><br/><label>Dewey Class. No.: </label>TA.0109