McWhirter, J. R. <br/><br/>
Use of high purity oxygen in the activated sludge process; v1   
ed. by J. R. McWhirter 
 - Florida  CRC  1978 
 - 276p. 
 - crc water pollution control technonogly uniscience series .
<br/><br/><label>ISBN: </label>0849351006 
<br/><br/><label>LCCN: </label>75-1824 
<br/><br/><label>Dewey Class. No.: </label>628.354  / N78.1