Luanna taifid
Lua APA (7ú heag.)
Estados Unidos Geological Survey. (1929). Map of the Eastern part of the northward extension of the sheridan coal field, rosebud and big horn counties, Montana. 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. Map of the Eastern Part of the Northward Extension of the Sheridan Coal Field, Rosebud and Big Horn Counties, Montana. U. S. Geological Survey, 1929.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
Estados Unidos Geological Survey. Map of the Eastern Part of the Northward Extension of the Sheridan Coal Field, Rosebud and Big Horn Counties, Montana. U. S. Geological Survey, 1929.
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.