Soil testing :  sampling, correlation, calibration, and interpretation / 
Edited by J.R Brown 
 - Madison, Wisconsin :  Soil Science Society of America, Inc.,  1987 
 - xi, 133 pages :  Illustration ;  23cm 
<br/><br/> Includes table 
<br/><br/><label>ISBN: </label>0891187847 (paperback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture --Soils
<br/><br/><label>LC Class. No.: </label>S593 S65