The effect of nonresponse on representativeness of Wilderness-Trail register information
By: by Wiley D. Wenger, Jr. and H. M. Gregersen.
Contributors: Gregersen, H. M.
Series: U.S. Forest Service research paper PNW -- no.17.; U.S. Forest Service research paper PNW -- 17.
Published: 1964
Place of publication: Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Forest Service
Language: eng
Number of pages: 20
Subjects: Camping -- Statistics.; Outdoor recreation -- Statistics.