APA (7th ed.) Citation

B, S. (1989). Proceedings Sixth Regional Conference the Geology Mineral & Hydrocarbon Resources .. Ikatan Ahli Geologi Indonesia.

Chicago Style (17th ed.) Citation

B, Situmorang. Proceedings Sixth Regional Conference the Geology Mineral & Hydrocarbon Resources .. Ikatan Ahli Geologi Indonesia, 1989.

MLA (8th ed.) Citation

B, Situmorang. Proceedings Sixth Regional Conference the Geology Mineral & Hydrocarbon Resources .. Ikatan Ahli Geologi Indonesia, 1989.

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