Tan, Kim H. <br/><br/>
Humic matter in soil and the environment :  principles and controversies / 
by Kim H. Tan. 
 - 2nd  ed. 
 - Boca Raton :  CRC Press,  2014. 
 - xxxi, 463  p. 
<br/><br/><label>ISBN: </label>1482234459 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humus--Environmental aspects.<br/>Humus--Biodegradation.<br/>Soils--Humic acid content.