Draffin, N. (2010). An introduction to bunker operations. Petrospot Ltd..
芝加哥风格引文Draffin, Nigel. An Introduction to Bunker Operations. Adderbury, Oxfordshire, England: Petrospot Ltd., 2010.
MLA引文Draffin, Nigel. An Introduction to Bunker Operations. Petrospot Ltd., 2010.
警告：这些引文格式不一定是100％准确.