Graphical recorders instruction for chart changing and annotation / 
contributors : V. M. Freestone [and] K. Sivapakianathan 
 - Kuala Lumpur:  Publications Unit, Ministry of Agriculture,  1976 
 - 25 p. :  ill. ;  30 cm. 
 - Hydrological procedure;  no.14 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology--Malaysia