a Nwokem, Nsidibeabasi Calvin <br/><br/>
\a  Study on the Effects of Chelating Agents on Hydraulic Retention Time, Methane and Hydrogen Sulphide Gas Yields from Solid Wastes  \h [Text] 
\c by Nsidibeabasi Calvin Nwokem 
 - \a  Zaria:  \b Dept. of Chemistry, ABU  \c 2014 
 - \a  xxii,201leaves.:  \b ill. 
<br/><br/>\a Faculty of Science 
<br/><br/>\a Includes bibliographical references 
<br/><br/><label>LC Class. No.: </label>\a  QD 474 Nwo  / \b 496852