Sopher, Charles D. <br/><br/>
Soils and soil management / 
Charles D. Sopher & Jack V. Baird 
 - Reston :  Reston Publishing Co.,  1978 
 - 238 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0879098015 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil science<br/>Soil management