Drechsler, Mark.
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.
9980811455
90012190
Geology--Papua New Guinea--Ramu Region.
Geology--Papua New Guinea--Highlands Highway.
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.
9980811455
90012190
Geology--Papua New Guinea--Ramu Region.
Geology--Papua New Guinea--Highlands Highway.