HSL's Virtual Reference Shelf is a collection of online reference e-books, databases and websites. Some are freely available and others are McMaster only resources (indicated by the yellow lock icon ) for which you'll need to be logged into LibAccess to open.
Below you'll see an index of reference categories to help you find what you need. Each alphabetical page of the virtual reference shelf also contains a table of contents for that page.
Please contact us if you'd like to suggest a resource for our online reference collection.