Maryland-National Capital Park and Planning Commission. (1969). General plan elements: A summary, Montgomery County, Maryland.
Chicago-viite (17. p.)Maryland-National Capital Park and Planning Commission. General Plan Elements: A Summary, Montgomery County, Maryland. Silver Spring, 1969.
MLA-viite (8. p.)Maryland-National Capital Park and Planning Commission. General Plan Elements: A Summary, Montgomery County, Maryland. 1969.
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