Ok, Yong Sik. <br/><br/>
Biochar :  production, characterization, and applications / 
Yŏng Sik Ok,..(et. al.) 
 - London :  CRC Prees,  c2016. 
 - xxii, 416 p. :  ill. ; 26cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780367658762 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biochar.<br/>Soil amendments.<br/>Filters and filtration
<br/><br/><label>Dewey Class. No.: </label>333.9539  / OK