Punjab botanical research scheme :  fifth progress report 1929-30 / 
Department of Agriculture,  Punjab (India, British), compiled by Trevor Trought 
 - Lahore :  Supdt. Govt. Printing ,  1931 
 - 6 p. ;  33 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cotton growing--India--Congresses
<br/><br/><label>Dewey Class. No.: </label>633.51