This parenthetical citation has too much information in the parentheses.You actually do not need any parenthetical citation for this quote. There are a few reasons why. The first is that the author of the quote is stated in the quote's set up when it says "President John F. Kennedy said,". Also, this quote is well-known so it doesn't require a parenthetical citation since it has been quoted numerous times.
It should also be noted that Wikipedia is not a reliable source and should not be used as a source in a paper. One can easily find the full-text of Kennedy's inaugural address on another, more reliable site.
