APA (7th ed.) Citation

Butler, M. (1939). Three archaeological sites in Somerset County, Pennsylvania. Commonwealth of Pennsylvania, Department of Public Instruction, Pennsylvania Historical Commission.

Chicago Style (17th ed.) Citation

Butler, Mary. Three Archaeological Sites in Somerset County, Pennsylvania. Harrisburg: Commonwealth of Pennsylvania, Department of Public Instruction, Pennsylvania Historical Commission, 1939.

MLA (8th ed.) Citation

Butler, Mary. Three Archaeological Sites in Somerset County, Pennsylvania. Commonwealth of Pennsylvania, Department of Public Instruction, Pennsylvania Historical Commission, 1939.