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.
Chicago-referens (17:e uppl.)Pan American Institute of Geography and History och 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.
MLA-referens (9:e uppl.)Pan American Institute of Geography and History och 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.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.