APA (7th ed.) Citation

Johnson, W. R. (1841). Report of an examination of the Bear Valley coal district: In Dauphin County, Pennsylvania. [publisher not identified].

Chicago Style (17th ed.) Citation

Johnson, Walter R. Report of an Examination of the Bear Valley Coal District: In Dauphin County, Pennsylvania. [Pennsylvania?]: [publisher not identified], 1841.

MLA (8th ed.) Citation

Johnson, Walter R. Report of an Examination of the Bear Valley Coal District: In Dauphin County, Pennsylvania. [publisher not identified], 1841.