Não informado. (1944). Surveying and mapping. American Congress on Surveying and Mapping.
Chicago-Zitierstil (17. Ausg.)Não informado. Surveying and Mapping. Washington: American Congress on Surveying and Mapping, 1944.
MLA-Zitierstil (8. Ausg.)Não informado. Surveying and Mapping. American Congress on Surveying and Mapping, 1944.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.