00807nam0-22003131i-450-9900031629504033210-8039-2958-7000316295FED01000316295(Aleph)000316295FED0100031629520000920d1990----km-y0itay50------baitaITPractical SamplingGary T. Henry.Beverly HillsLondonSage1990.139 p.22 cmApplied Social Research Methods Series211122011320Henry,Gary T.ITUNINARICAUNIMARCBK99000316295040332111320 HEN12340SESSESPractical Sampling458888UNINAING01