Fundamentals of agrophysics / 
P. V. Vershinin ... [et. al] 
 - London :  Macmillan,  1966 
 - 236 p. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Crop improvement
<br/><br/><label>Dewey Class. No.: </label>630.23