Integrating APA Style into your RefWorks account is a little problematic, but once you understand it, quite easy to do.
Here are some blog posts that show you how to get the 6th edition done right. Handouts are on the site too.
There's a new sheriff in town. APA style has changed with the new APA Publication Manual.
Books: In the location fields, include the 2 letter state abbreviation with all American cities.
ex. New York, NY
Electronic Resources: Include the DOI (Digital Object Identifier) when available.
Boreus, K. (2007). Discursive discrimination against the "deaf-mute"/"deaf" and the importance of categorization in 20th century sweden. Disability & Society, 22(6), 609-623. doi:10.1080/09687590701560238
If there is no DOI, state "Retrieved from [the journal's homepage URL]
Morin, K. D., & Bernheim, R. O. (2005). Who can be a hero?: Helen keller, Annie Sullivan, and discovering strength of character. Social Studies and the Young Learner, 17(4), 17-30. Retrieved from http://www.socialstudies.org/publications/ssyl/