National Research Council (U.S.). Highway Research Board. (1952). Off-street parking: Legislative trends and administrative agencies : summary report : presented at the Thrity-first Annual Meeting, January 17, 1952. Highway Research Board.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)National Research Council (U.S.). Highway Research Board. Off-street Parking: Legislative Trends and Administrative Agencies : Summary Report : Presented at the Thrity-first Annual Meeting, January 17, 1952. Washington, D.C: Highway Research Board, 1952.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)National Research Council (U.S.). Highway Research Board. Off-street Parking: Legislative Trends and Administrative Agencies : Summary Report : Presented at the Thrity-first Annual Meeting, January 17, 1952. Highway Research Board, 1952.