APA

USA, . (196119601961). Studies prepared for the Subcommittee on Patents, Trademarks and Copyrights of the Committee on the Judiciary, United States Senate ... Congress. Washington: United States, Government Printing Office.

Chicago

USA, . 196119601961. Studies prepared for the Subcommittee on Patents, Trademarks and Copyrights of the Committee on the Judiciary, United States Senate ... Congress. Washington: United States, Government Printing Office.

Harvard

USA, . (196119601961). Studies prepared for the Subcommittee on Patents, Trademarks and Copyrights of the Committee on the Judiciary, United States Senate ... Congress. Washington: United States, Government Printing Office.

MLA

USA, . Studies prepared for the Subcommittee on Patents, Trademarks and Copyrights of the Committee on the Judiciary, United States Senate ... Congress. Washington: United States, Government Printing Office. 196119601961.