Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Zitierstil

Research reports: On research and exploration supported by grants from the National Geographic Society during the year . Washington, DC: Soc.,.

Chicago Zitierstil

Research Reports: On Research and Exploration Supported By Grants From the National Geographic Society During the Year . Washington, DC: Soc.,.

MLA Zitierstil

Research Reports: On Research and Exploration Supported By Grants From the National Geographic Society During the Year . Washington, DC: Soc.,.