Here is a short list of recommended reference titles. Search the Library Catalogue for other titles of possible use. You can also browse the print Reference Collection. We use Library of Congress Classification. Most items dealing with the study of current politics fall within Class J - Political Science. If you are doing political history you may find items classified under history. United States history fall under Class E and Canadian history falls under Class F.
Dictionary of Canadian Biography, 1821-1835 by 
Encyclopedia of Media and Politics by 
Encyclopedia of War Crimes and Genocide by 
International Encyclopedia of Political Science by 
International Relations by 
The Palgrave Macmillan Dictionary of Political Thought by 
Encyclopedia of Postcolonial Studies by 