Multiple cropping :  proceedings of a symposium sponsored by Divisions A - 6, S- 4, S- 6, A- 3, A- 4 and C- 3 ... / 
R. I. Papendick, P. A. Sanchez, G. B. Triplett, editors. 
 - Madison, Wis. :  American Society of Agronomy,  1976. 
 - 378 p. :  ill. ;  23 cm. 
 - ASA special publication ;  number 27 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0891180451 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Double cropping--Congresses.<br/>Cropping system--Congresses.