APA (7th ed.) Citation

IMPS Research, Pty Ltd. (1992). PNG wells directory (4th ed.). IMPS Research.

Chicago Style (17th ed.) Citation

IMPS Research, Pty Ltd. PNG Wells Directory. 4th ed. Port Moresby: IMPS Research, 1992.

MLA (9th ed.) Citation

IMPS Research, Pty Ltd. PNG Wells Directory. 4th ed. IMPS Research, 1992.

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