Many of these items are part of a larger series, like the At Issue series or the Opposing Viewpoints series. To locate items beyond those linked here, search UW Libraries WorldCat for the series itself and then limit by date, location, etc.
For example, search
se:"At issue" then limit to year.
If an item is not available in the OWRC, feel free to request it.
Click the Request Item button and follow the prompts.