Record citatie

APA (7e ed.) Bronvermelding
Clark William Bullock, Walcott Charles Doolittle, Glenn L. C., Miller Benjamin L., & Neal W. D. (1902). Map of Calvert county showing the geological formations. U. S. Geological Survey.
Chicago (17e ed.) Bronvermelding
Clark William Bullock, Walcott Charles Doolittle, Glenn L. C., Miller Benjamin L., en Neal W. D. Map of Calvert County Showing the Geological Formations. U. S. Geological Survey, 1902.
MLA (9e ed.) Bronvermelding
Clark William Bullock, et al. Map of Calvert County Showing the Geological Formations. U. S. Geological Survey, 1902.
Let op: Deze citaties zijn niet altijd 100% accuraat.