APA引文

Paul Coombs. (2003). IT project estimation: A practical guide to the costing of software. Cambridge, UK: Cambridge Univ. Press.

Trích dẫn kiểu Chicago

Paul Coombs. IT Project Estimation: A Practical Guide to the Costing of Software. Cambridge, UK: Cambridge Univ. Press, 2003.

MLA引文

Paul Coombs. IT Project Estimation: A Practical Guide to the Costing of Software. Cambridge, UK: Cambridge Univ. Press, 2003.

警告：這些引文格式不一定是100％准確.