Dowling, K. N. (2008). SAP Project System Handbook. Tata McGraw Hill Publishing Company Ltd.
芝加哥风格引文Dowling, Kieron N. SAP Project System Handbook. New Delhi: Tata McGraw Hill Publishing Company Ltd, 2008.
MLA引文Dowling, Kieron N. SAP Project System Handbook. Tata McGraw Hill Publishing Company Ltd, 2008.
警告：这些引文格式不一定是100％准确.