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The AP Stylebook is the ultimate resource when it comes to AP style. You can purchase it in several forms through the AP Stylebook website. The print version for $18.95 plus shipping The online ...
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#3: Attribution notice added
Source: https://writers.stackexchange.com/a/1114 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
The AP Stylebook is the ultimate resource when it comes to AP style. You can purchase it in several forms through the [AP Stylebook website](http://www.apstylebook.com/). - The print version for $18.95 plus shipping - The online version for $25.00 - The iOS version for $24.99 (in the App Store). Libraries and universities with journalism programs may also have group subscriptions that you can use if you are a member or student. Unfortunately, the AP folks apparently want your money, as they do not offer a free reference. There are a couple sparse summaries online - such as [this](http://www.scribd.com/doc/2664713/Associated-Press-AP-Style-Guide-the-basics) and [this](http://journalism.about.com/od/writing/a/apstyle.htm), but they do not specifically address citation rules.