McGee, Roger Valentine, <br/><br/>
Mathematics in agriculture / 
R. V. McGee. 
 - 2nd ed. 
 - Englewood Cliffs, N. J. :  Prentice-Hall,  1954. 
 - x, 208 p. :  ill. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.