APA引文

Independent Petroleum Association of America. The Oil producing industry in your state. Petroleum Independent Publishers.

Chicago Style (17th ed.) Citation

Independent Petroleum Association of America. The Oil Producing Industry in Your State. [Washington: Petroleum Independent Publishers.

MLA引文

Independent Petroleum Association of America. The Oil Producing Industry in Your State. Petroleum Independent Publishers.

警告：这些引文格式不一定是100％准确.