Answer:
Keegan, John. “Winston Churchill”. Time Magazine, April, 1998. Web. 29 April 2013
Step-by-step explanation:
The citation of an article obtained from an online source typically begins with the surname of the author, and his first name both separated by a comma and ended with a full stop. The title of the article now follows incased with a quotation mark and followed by a full stop.
Next, is the the name of the publisher and the month/year the original article was posted. Finally, is the month and year when the article was accessed. The third option in the list meets up with the stated criteria.