Calder, A. (2009). The green office: A business guide. IT Governance Pub..
芝加哥风格引文Calder, Alan. The Green Office: A Business Guide. Ely, U.K.: IT Governance Pub., 2009.
MLA引文Calder, Alan. The Green Office: A Business Guide. IT Governance Pub., 2009.
警告：这些引文格式不一定是100％准确.