PICKETT, L C THE DEVELOPMENT AND PRE-TEST OF AN INSTRUMENT FOR ASSESSING THE STATUS OF SENIOR CITIZENS IN WYOMING AND SOME INVESTIGATIONS OF SAMPLING AND INTERVIEW TECHNIQUE. [electronic resource] - The Gerontologist Sep 1964 - 161-3 p. digital Publication Type: Journal Article ISSN: 0016-9013 Standard No.: 10.1093/geront/4.3_part_1.161 doi Subjects--Topical Terms: GeriatricsHumansWyoming