source of quotes

[Allan]

I have been writing a paper and been using quotes found on the internet which are attributed by everyone to the same person. However, I need a specific source. Is there somewhere where i can find sources of a particular quote? for instance, I am quoting Mary Angelou saying that “There is no greater agony than bearing an untold story inside you.” Every site agrees that she said/wrote it, but noone has pinned it down to a specific source. Any ideas?
Thanks

[Kim]

Wikiquote doesn't even have that quote

[Allan]

Maybe they don't but Goodreads does -
http://www.goodreads.com/author/quote...

[Kim]

Yes but Wikiquotes has sources. This quote seems to have no source. Quoteland doesn't have it either. I'd say it's just somehow been attached to Maya Angelou but not by her.

[Allan]

thanks kim - i will add those two sites for my searches as well

[Gerd]

Problem is you can't always cite quotes properly in GoodReads (not that it's meant to), for example when they appear as part of an interview or in books where the person is not named as contributor.

I've added two Douglas Adams quotes from "Don't Panic" for example, but because the book is from Neil Gaiman the source can't be added to them.

[Ron]

You might also try checking in her books (such as in Amazon's Search Inside this Book) for the quote.

[Allan]

Ron thanks for Great idea
but I got there too late though and was met with the following message - "This promotion has now finished."
google tho has a similar service.
thanks
allan