A good place to begin your research on class actions is in a text. Some leading texts are listed on this page for your convenience.
To find a full listing of books on your topic, search the library catalogue under the subject heading "Class Actions".
Williston and Rolls Court Forms, 3rd ed., loose-leaf. (LexisNexis, 1986-). KF 8836 W54 2017 / 2nd floor Practice Collection; also available on Lexis+™ Canada in the library.