Crocombe, R. G. <br/><br/>
The erap mechanical farming project / 
R. G. Crocombe and G. R. Hogbin 
 - Australian National University, Canberra :  New Guinea Research Unit,  1968 
 - 44 p. :  ill., maps. ;  26 cm. 
 - New Guinea research unit bulletin  no. 1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farm mechanization--Papua New Guinea