Steve Tracey & Michael del Rosario Portrait of Steve Tracey & Michael del Rosario. https://www.smeal.psu.edu/scis/news-events/old-content/images/steve-tracey-michael-del-rosario.jpg/view https://www.smeal.psu.edu/@@site-logo/logo.png Steve Tracey & Michael del Rosario Portrait of Steve Tracey & Michael del Rosario. Click to view full-size image… Size: 58KB
