Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Mary Wells Lawrence:

"

After Wells Lawrence stepped down as CEO in 1990, the agency was sold to Boulet Dru Dupuy Petit, and became known as Wells Rich Greene BDDP.[3] The agency officially ceased operations in 1998, and donated its archive of print and television ads to Duke University's John W. Hartman Center for Sales, Advertising and Marketing History.[citation needed][6]