NAPP: Census microdata 1801 - 1911 NAPP The North Atlantic Population Project Internasjonale kodede folketellinger. North Atlantic Population Project North Atlantic Population Project (NAPP) NAPP IPUMS NAPP North Atlantic Population Project napp nappdata.org North Atlantic Population Project. napp North Atlantic Population Project IPUMS NAPP North Atlantic Population Project (NAPP) North Atlantic Population Project NAPP NAPP: Census microdata 1801 - 1911 Current Version Minnesota Population Center Visit Site North Atlantic Population Project (NAPP) NAPP: Folketelling mikrodata 1801 - 1911 IPUMS NAPP napp napp napp "North Atlantic Population Projet" NAPP The North Atlantic Population Project napp North Atlantic Population Project NAPPDATA napp NAPP: Census microdata 1801 - 1911 napp napp IPUMS NAPP The North Atlantic Population Project IPUMS NAPP North Atlantic Population Project Current Version napp