Luanna taifid
Lua APA (7ú heag.)
Estados Unidos Geological Survey & Charles D. Walcott. (1897). Map showing condition and progress of topographic surveys and location of gaging stations for the fiscal year 1896-1897. U. S. Geological Survey.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua i Stíl Chicago (17ú heag.)
Estados Unidos Geological Survey agus Charles D. Walcott. Map Showing Condition and Progress of Topographic Surveys and Location of Gaging Stations for the Fiscal Year 1896-1897. U. S. Geological Survey, 1897.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
Estados Unidos Geological Survey agus Charles D. Walcott. Map Showing Condition and Progress of Topographic Surveys and Location of Gaging Stations for the Fiscal Year 1896-1897. U. S. Geological Survey, 1897.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.