The print edition of Publication manual of the American Psychological Association: the official guide to APA style is available at Mannix Library.
The APA website includes a lot of free resources, for example https://apastyle.apa.org/style-grammar-guidelines/references/examples
The Library Hub also provides several options for obtaining citations in the APA style.
Books & eBook (UDCat) Search
Click the "Cite" button from the record you want to cite, choose APA 6th Ed (7th edition is still coming, but won’t be significantly different). Alternatively if you are using EndNote, export the citation and load into EndNote, make sure you have set the output style to APA.
Articles & More Search
Click "Cite" from the Tools menu, scroll down the list of citation formats until you see APA.