ebrary, Inc. (2006). The Hutchinson guide to GCSE web sites. Helicon Publishing.
芝加哥风格引文ebrary, Inc. The Hutchinson Guide to GCSE Web Sites. Abingdon: Helicon Publishing, 2006.
MLA引文ebrary, Inc. The Hutchinson Guide to GCSE Web Sites. Helicon Publishing, 2006.
警告：这些引文格式不一定是100％准确.