Ownership Reporting System (ORS) of the Securities Exchange Commission (SEC), 1991

National Archives, 2009, "Ownership Reporting System (ORS) of the Securities Exchange Commission (SEC), 1991", https://hdl.handle.net/11272.1/AB2/V29IEC, Abacus Data Network, V1美国国家档案馆（National Archives）于2009年发布数据集《美国证券交易委员会（Securities Exchange Commission, SEC）1991年所有权报告系统（Ownership Reporting System, ORS）》，其永久资源标识符为https://hdl.handle.net/11272.1/AB2/V29IEC，收录于算盘数据网络（Abacus Data Network），版本为V1。