Salmon, S. C. <br/><br/>
The principles and practice of agricultural research 

 - London :  Leonard Hill,  1964 
 - 384 p. 
<br/><br/><label>LCCN: </label>49644 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Investigación.
<br/><br/><label>Dewey Class. No.: </label>630.72  / S35