National Geographic Society (U.S.). (1999). National Geographic United States atlas for young explorers. Washington, D.C: National Geographic Society.
Chicago ZitierstilNational Geographic Society (U.S.). National Geographic United States Atlas for Young Explorers. Washington, D.C: National Geographic Society, 1999.
MLA ZitierstilNational Geographic Society (U.S.). National Geographic United States Atlas for Young Explorers. Washington, D.C: National Geographic Society, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.