=LDR 00000nam 2200000 4500 =001 INLIS000000000029751 =005 20130612131946 =008 ***********************************Eng** =035 ##$$0010-061300000029751 =041 ##$$a Eng =082 ##$$a 001.422 2 =090 ##$$a 001.422 2, Coc s =100 ##$$a Cochran, William G =245 ##$$a Sanmpling techniques Third edition, William G Cochran =850 ##$$a NBPNMAT