Here are some examples of common types of sources using the APA style. For for more details on different types of citations, check out the Purdue Online Writing Lab's guide to citations in APA style.
Remember that APA calls for you to double-space your citations and use a hanging indent. That means that only the first line of a citation comes to the left side of the page. All subsequent lines of each citiation are indented one half inch. This video shows you how to sent hanging indents via the Paragraph menu in MS Word.
Johnson-Woods, T. (2007). Blame Canada!: South Park and popular culture. New York, NY: Continuum.
Chapter from a Book:
Kashem, M. A. (2007). Use of television as a community media by farmers in Bangladesh. In K. Fuller (Ed.), Community media: International perspectives (pp. 69-76). New York, NY: Palgrave Macmillan.
Sinclair, J. (2009). The advertising industry in Latin America. International Communication Gazette, 71, 713-733. doi: 10.1177/1748048509345065
Statistics from a report:
Euromonitor International. Austria: Market Value - Historic - Value at Current Prices [Data file]. Available from http://www.portal.euromonitor.com.
Jacobs, A. (2010, April 1). Desprite strains, China leader to attend nuclear meeting in U.S. The New York Times. Retrieved from http://www.nytimes.com/2010/04/02/world/asia/02china.html?hp.
Smith, A. (2011, June 1). Twitter update 2011. Retrieved from http://www.pewinternet.org/Reports/2011/Twitter-Update-2011.aspx.
YouTube Video (more info from the APA Style blog):
Alden Library. (2012, July 25). How to find a book in Alden Library [Video file]. Retrieved from http://youtu.be/TZn6t_aqtG4.
Data from Statista (Note that you should cite the creator/source of the data as the author, NOT Statista, but indicate that the information comes from the Statista website. This is basically a website citation.)
International Telecommunication Union. (2011, October). Number of active mobile broadband subsciptions worldwide from 2005 to 2011 (in millions). Retrieved from http://www.statista.com/statistics/186337/number-of-mobile-broadband-subscriptions-worldwide-since-2005/.