nd, Oregon. Globe Pequot. p. 4. ISBN 978-0-7627-6475-4. Retrieved August 18, 2011.↑  "International Rose Test Garden – Washington Park". Portland Parks & Recreation. Retrieved July 29, 2011↑  Flores, Trudy; Griffith, Sarah (2002). "Portland Rose Festival, 1910". Oregon History Project. Oregon Historical Society. Retrieved August 19, 2012.↑  Chasing The Rose, Andrea di Robilant, Knopf, 2014, p. 91↑  "International Rose Test Garden – Washington Park". Portland Parks & Recreation. Retrieved July 29, 2011.↑  Stern, Henry (June 19, 2003). "Name comes up roses for P-town: City Council sees no thorns in picking 'City of Roses' as Portland's moniker". The Oregonian (Portland, Oregon: Advance Publications). p. D1.↑  "City Flower". City of Portland Auditor's Office. Retrieved July 29, 2011.↑  "International Rose Test Garden – Washington Park". Portland Parks & Recreation. Retrieved July 29, 2011↑  Fodor's Travel Publications (1997). The Pacific Northwest's Best Bed & Breakfasts (