APA (7th ed.) Citation

Warren, E. (1988). Land stability zoning of Goroka and environs. Geological Survey of Papua New Guinea.

Chicago Style (17th ed.) Citation

Warren, E. Land Stability Zoning of Goroka and Environs. Port Moresby: Geological Survey of Papua New Guinea, 1988.

MLA (9th ed.) Citation

Warren, E. Land Stability Zoning of Goroka and Environs. Geological Survey of Papua New Guinea, 1988.

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