000 00299nam a22001097a 4500
082 _a311.21
_bSHO/S
245 _aShort manual on sampling Volume 1 :
_bElements of samole survey theory /
260 _aNew York :
_bUniited nations,
_c1960.
300 _a214p. :
650 _astatistical
942 _cBK
999 _c303668
_d303668