Forbes, T. J. <br/><br/>
Factors affecting the productivity of permanent grassland; a national farm study 

 - Hurley, England :  Grassland Research Institute,  1980 
 - 141 p. 
<br/><br/><label>LCCN: </label>41502 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pastizales.<br/>Pastos forrajeros--Rendimiento<br/>Pastos--Efecto del medio ambiente.
<br/><br/><label>Dewey Class. No.: </label>633.2  / F67