Soil and plant analysis laboratory registry for the United States and Canada / 
Soil and Plant Analysis Council. 
 - 2nd ed. 
 - Boca Raton, Fla. :  CRC Press,  c1999. 
 - 209 p. ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>1574441795 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Analysis.<br/>Leaves--Analysis.
<br/><br/><label>LC Class. No.: </label>S593  / S64 1999