What does USSR stand for?

MLA style: "USSR." Acronym Finder . 2012. AcronymFinder.com 4 Jun. 2012 <a href="http://www.acronymfinder.com/Underground-Security-Systems-Research-(USSR).html">http://www.acronymfinder.com/Underground-Security-Systems-Research-(USSR).html
Chicago style: Acronym Finder . S.v. "USSR." Retrieved June 4 2012 from <a href="http://www.acronymfinder.com/Underground-Security-Systems-Research-(USSR).html">http://www.acronymfinder.com/Underground-Security-Systems-Research-(USSR).html
APA style: USSR. (n.d.) Acronym Finder. (2012). Retrieved June 4 2012 from <a href="http://www.acronymfinder.com/Underground-Security-Systems-Research-(USSR).html">http://www.acronymfinder.com/Underground-Security-Systems-Research-(USSR).html

Underground Security Systems Research

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United States Special Operations Command (also seen as SOCOM; US DoD) United States School of Golf United States Air Force, Southern Command (US DoD) United States Southern Command Uncontrolled Slip Seconds - Path (Telabs) United States Scouting Service Project United States Space Command United States Security Policy Board United States Strategic Prayer Network United States Support Group		Uninterrupted Sustained Silent Reading (education) Union of Soviet Socialist Republics (now Commonwealth of Independent States) United Soldiers of Soldat Realistic (gaming clan) Universal Solid State Relay Unstimulated Salivary Secretion Rate United States Socialist Republic of America United States Squash Racquets Association United States Strategic Command United States Space and Rocket Center (Hunstville, AL) Unitarian Sunday School Society Sermon

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This issue was discovered under laboratory conditions at Underground Security Systems Research (USSR) center (http://www.