These reference resources are all available via APU's subscription databases, and some of them are available both online and in print (see notes for each item).
The following apps can be used to convert photos you take with your phone/tablet camera into high-quality PDF documents. This can be especially useful when you don't have time to stay in the library to use the reference collection, and don't want to use the library printer/copiers. Both apps have free versions.
When you're beginning your research, reference resources can be your best friends. These types of resources can give you valuable background information and provide bibliographies to help you go deeper into a particular subject. The resources below and in the other boxes on this page can be great places to start.
The following resources are freely available on the Internet.