Ruffin, Edmund,  1794-1865. <br/><br/>
An essay on calcareous manures; 
by Edmund Ruffin ... 
 - 5th ed., amended and enl. 
 - Richmond, Va.,  J.W. Randolph,  1852. 
 - xv, 17-493 p.  21 cm. 
<br/><br/>
<br/><br/><label>LCCN: </label>agr07001592  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marl.<br/>Fertilizers.
<br/><br/><label>LC Class. No.: </label>S643  / .R92 1852 
<br/><br/><label>National Agricultural Library Call No.: </label>57  / R83