Bradley, J. T., & Guthrie, J. A. (1953). An analysis of convention business in Washington State: A sample survey of five cities. State College of Washington, School of Economics and Business, Bureau of Economic Research.
Lua i Stíl Chicago (17ú heag.)Bradley, Joseph Thomas, agus John Alexander Guthrie. An Analysis of Convention Business in Washington State: A Sample Survey of Five Cities. Pullman: State College of Washington, School of Economics and Business, Bureau of Economic Research, 1953.
Lua MLA (8ú heag.)Bradley, Joseph Thomas, agus John Alexander Guthrie. An Analysis of Convention Business in Washington State: A Sample Survey of Five Cities. State College of Washington, School of Economics and Business, Bureau of Economic Research, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.