Awang, I. (2009). Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine.
芝加哥风格引文Awang, Idris. Effect of Compressed Natural Gas on Performance and Emission of a 4-stroke Spark Ignition Engine. 2009.
MLA引文Awang, Idris. Effect of Compressed Natural Gas on Performance and Emission of a 4-stroke Spark Ignition Engine. 2009.
警告：这些引文格式不一定是100％准确.