Economics guide for watershed protection and flood prevention.
|Corporate Author:||United States.|
[Washington] Soil Conservation Service, U.S. Dept. of Agriculture, 1958-
Flood control > United States
"An interim version ... was issued in May 1956 for use during a trial period ... Revisions have been limited at this time ... many portions of this guide are still in a tentative stage and it is anticipated that more extensive revisions will be made over an extended trial period."
1 v. (loose leaf)
|Original Classification Number:||TC 423 .A6 1958|
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