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Your query returned 4 results. Series results are grouped under the most relevant study. You can ungroup series results. Use the search box below to revise your search, or start a new search.

 
 
 
 
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Study Title/Investigator
1.
National Camping Market Survey, 1971 (ICPSR 7798)
United States Department of Agriculture. Forest Service
2.
National Camping Market Survey, 1973 (ICPSR 7799)
United States Department of Agriculture. Forest Service
3.
National Camping Market Survey, 1978 (ICPSR 7800)
United States Department of Agriculture. Forest Service
4.
National Skiing Market Survey, 1978 (ICPSR 7801)
United States Department of Agriculture. Forest Service
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