Ellen Jaskol, Hamburger ingredients, with help from Chef Heath Stone (Cq), at Johnson & Wales in Denver on June 5, 2006. (ELLEN JASKOL/ROCKY MOUNTAIN NEWS) *** (06/05/2006), [433565747] . Denver Public Library Digital Collections, accessed 22/05/2025, https://digital.denverlibrary.org/nodes/view/944965