Model Study of C.H.O. Structure 

 - edisi 
 - Kuala Lumpur  Jabatan Pengairan dan Saliran Malaysia  [date of publication not identified] 
 - m/surat, illust. tinggi (cm) 
 - Memorandum No. 128 .
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<br/><br/><label>Subjects--Topical Terms: </label><br/>SUBJECT.