. "1915-11-25Z"^^ . "2015-08-21Z"^^ . "Ruth Leger Sivard (November 25, 1915 \u2013 August 21, 2015) was an American economist. She worked at the Arms Control and Disarmament Agency from 1961 to 1971, drawing attention to excessive military budgets by compiling data on international defense spending."@en . "Ruth Lucille Leger"@en . "Ruth Leger Sivard"@en . . "1915Z"^^ . . "2015Z"^^ . .