Even if you use the citation tool within a website, e journal, or Google Scholar, you MUST double check your work through a credible source such as Excelsior OWL. You can't rely on the citation generator of Google Scholar, etc to have all of the details correct and in order.
The best way to access the FREE VERSION (for Hunter students and faculty) of the Chicago Manual of Style Online is by going through Hunter's list of databases here. If you do not go through this channel you will not be able to access the full extent of this guide.
According to the American Anthropological Association, Chicago is the standard citation style for Anthropology.