Additional APA Resources
The Purdue OWL
The Purdue Online Writing Lab is one of the most popular and comprehensive APA resources online.
APA Tutorial
The American Psychological Association itself put together this interactive tutorial for students that have no prior knowledge of APA.
Son of Citation Machine
This online application can help you put together your reference page. Especially helpful if you have a more tricky reference to list.
Knite Cite
Calvin College's citation machine.