Indonesian Petroleum Association. Proceedings of the annual convention - Indonesian Petroleum association. Indonesian Petroleum Association.
芝加哥风格引文Indonesian Petroleum Association. Proceedings of the Annual Convention - Indonesian Petroleum Association. Jakarta,: Indonesian Petroleum Association.
MLA引文Indonesian Petroleum Association. Proceedings of the Annual Convention - Indonesian Petroleum Association. Indonesian Petroleum Association.
警告：这些引文格式不一定是100％准确.