Douglas, Ian <br/><br/>
Erosion in the Sungei Gombak Catchment, Selangor, Malaysia / 
by Ian Douglas 
 - Hull :  University of Hull,  1968 
 - 16 p. :  maps. ;  25 cm. 
 - Journal of tropical geography ;  v.26, June 1968 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Erosion--Sungei Gombak Catchment--Selangor<br/>Watersheds--Sungei Gombak Catchment--Selangor