SAN FRANCISCO--(BUSINESS WIRE)--PBteen, a member of the Williams-Sonoma, Inc. (NYSE:WSM) portfolio of brands, debuts its third product collection designed in collaboration with designers and fashion stylists Emily Current and Meritt Elliott. Available for purchase now on PBteen.com and in PBteen stores nationwide on September 18, the Emily & Meritt for PBteen exclusive collection of vintage-inspired, yet modern, home furnishings and accessories offers a bit of sparkle, plenty of whimsy and