Recreation statistics / Department of the Army, Corps of Engineers, Civil Works Directorate.
Washington, D.C. : The Directorate :
> United States
Description based on: 1973.
Issued by: Dept. of the Army, Corps of Engineers, Civil Works Directorate, <1973->-1977; Dept. of the Army, Office of the Chief of Engineers, 78-79-
ill. (some col.) ;
|Original Classification Number:||GV191.4 .U53a|
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