Chase, S. (1951). "Operation bootstrap" in Puerto Rico; report of progress. National Planning Association.
Chicagoスタイル(17版)引用形式Chase, Stuart. "Operation Bootstrap" in Puerto Rico; Report of Progress. Washington: National Planning Association, 1951.
MLA(9版)引用形式Chase, Stuart. "Operation Bootstrap" in Puerto Rico; Report of Progress. National Planning Association, 1951.
警告: この引用は必ずしも正確ではありません.