Correct! This is the best in-text citation example.
In 2002 Internet gambling surpassed pornography in Internet use (92). In order to understand how this process shifted, researchers have continued to study the progress of Internet gambling. George Will stated that the first gambling Web site appeared in 1995, and online gambling has since become the most lucrative Internet business. In this paper, I will demonstrate the transition in popularity during the 1990's.
Sentence 1: Since you are introducing a new source, you must include the name of the source itself. This could be the name of the individual, institution, or organization.
Correct version: George Will reported that in 2002 Internet gambling surpassed pornography in Internet use (92).
Sentences 2 and 4: These are your own thoughts and words and do not need citing.
Sentence 3: Here, the source itself is mentioned, but not where the information came from. Make sure a page number is included for the reference.
Correct version: George Will stated that the first gambling Web site appeared in 1995, and online gambling has since become the most lucrative Internet business (92).