Record citatie

APA (7e ed.) Bronvermelding
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.
Chicago (17e ed.) Bronvermelding
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.
MLA (9e ed.) Bronvermelding
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.
Let op: Deze citaties zijn niet altijd 100% accuraat.