Pan American Institute of Geography and History & Gutsell, B. J. (1979). The Purpose and use of national and regional atlases: A collection of papers presented at an international seminar. B. V. Gutsell.
Lua i Stíl Chicago (17ú heag.)Pan American Institute of Geography and History agus Barbara J. Gutsell. The Purpose and Use of National and Regional Atlases: A Collection of Papers Presented at an International Seminar. Toronto, Canada: B. V. Gutsell, 1979.
Lua MLA (9ú heag.)Pan American Institute of Geography and History agus Barbara J. Gutsell. The Purpose and Use of National and Regional Atlases: A Collection of Papers Presented at an International Seminar. B. V. Gutsell, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.