Situmorang, B. (1983). Kumpulan makalah Pertemuan Ilmiah Tahunan XII Ikatan Ahli Geologi Indonesia: Proceedings of the 12th Annual Convention of the Indonesian Association of Geologists. Jakarta: Ikatan Ahli Geologi Indonesia.
Chicago Style CitationSitumorang, B. Kumpulan Makalah Pertemuan Ilmiah Tahunan XII Ikatan Ahli Geologi Indonesia: Proceedings of the 12th Annual Convention of the Indonesian Association of Geologists. Jakarta: Ikatan Ahli Geologi Indonesia, 1983.
MLA CitationSitumorang, B. Kumpulan Makalah Pertemuan Ilmiah Tahunan XII Ikatan Ahli Geologi Indonesia: Proceedings of the 12th Annual Convention of the Indonesian Association of Geologists. Jakarta: Ikatan Ahli Geologi Indonesia, 1983.
Warning: These citations may not always be 100% accurate.