Soo, Swee Weng <br/><br/>
Reconnaissance soil survey of Perak / 
by Soo Swee Weng 
 - 85 pages :  illustrations ;  27 cm. 
 - Malayan soil survey report ;  no.1/1968 .
 - Malayan soil survey report ;  no.1/1968 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil surveys--Perak<br/>Soil--Perak