ebrary, Inc, & Lewandowski, D. (2012). Web search engine research. Emerald.
芝加哥风格引文ebrary, Inc, 与 Dirk Lewandowski. Web Search Engine Research. Bingley: Emerald, 2012.
MLA引文ebrary, Inc, 与 Dirk Lewandowski. Web Search Engine Research. Emerald, 2012.
警告：这些引文格式不一定是100％准确.