APA (7th ed.) Citation

Unrau, H. D. (1982). Historic structure report, historical data section, Old City Hall, Lowell National Historical Park, Lowell, Massachusetts: Package no. 105 (project type 35). U.S. Dept. of the Interior, National Park Service, Denver Service Center, Mid-Atlantic/North Atlantic Team, Branch of Historic Preservation.

Chicago Style (17th ed.) Citation

Unrau, Harlan D. Historic Structure Report, Historical Data Section, Old City Hall, Lowell National Historical Park, Lowell, Massachusetts: Package No. 105 (project Type 35). Denver, Colo.: U.S. Dept. of the Interior, National Park Service, Denver Service Center, Mid-Atlantic/North Atlantic Team, Branch of Historic Preservation, 1982.

MLA (9th ed.) Citation

Unrau, Harlan D. Historic Structure Report, Historical Data Section, Old City Hall, Lowell National Historical Park, Lowell, Massachusetts: Package No. 105 (project Type 35). U.S. Dept. of the Interior, National Park Service, Denver Service Center, Mid-Atlantic/North Atlantic Team, Branch of Historic Preservation, 1982.