01227nam a2200325 i 450099100122457970753620020507113110.0970308s1977 us ||| | eng 9780471162407b10190892-39ule_instLE00644203ExLDip.to Fisicaita001.4'222510(022:076)510.60510.62QA276Cochran, William Gemmell460561Sampling techniques /W.G. CochranNew York :John Wiley & Sons,1977xvi, 428 p. :ill. ;24 cm.Sampling.b1019089210-10-1427-06-02991001224579707536LE006 510.62+510.65 COC12006000023412le006nE0.00-l- 01010.i1023555327-06-02LE025 ECO 001.4 COC01.0212025000255319le025Prof. Posa-E142.71-n- 022620.i1532065020-09-11LE025 ECO 001.4 COC01.0222025000102828le025-E0.00-l- 042940.i1490348912-12-08Sampling techniques189955UNISALENTOle006le02501-01-97ma -engus 01