APA (7th ed.) Citation

Drechsler, M. (1989). Ramu and Highlands Highway rip-rap materials search. Geological Survey of Papua New Guinea.

Chicago Style (17th ed.) Citation

Drechsler, Mark. Ramu and Highlands Highway Rip-rap Materials Search. Port Moresby: Geological Survey of Papua New Guinea, 1989.

MLA (9th ed.) Citation

Drechsler, Mark. Ramu and Highlands Highway Rip-rap Materials Search. Geological Survey of Papua New Guinea, 1989.

Warning: These citations may not always be 100% accurate.