Drechsler, Mark. <br/><br/>
Ramu and Highlands Highway rip-rap materials search / 
by Mark Drechsler. 
 - Port Moresby :  Geological Survey of Papua New Guinea,  1989. 
 - 19 p., 37 plates, [4] :  ill. + charts in pocket. 
<br/><br/><label>ISBN: </label>9980811455 
<br/><br/><label>LCCN: </label>90012190     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Papua New Guinea--Ramu Region.<br/>Geology--Papua New Guinea--Highlands Highway.