1972 recreation statistics.

Bibliographic Details
Corporate Author:	United States. Army. Corps of Engineers. Civil Works Directorate
Format:	Government Document Book
Language:	English
Series:	EP (Washington, D.C.) ; EP 1130-2-401.
Subjects:	Outdoor recreation > United States > Statistics.

Description
Item Description:	Supersedes edition of Apr. 1973.
Physical Description:	23 pages : illustrations ; 22 x 28 cm.