Sampling techniques Cochran, William C. text New York John Wiley & Sons Inc 1953 eng id xiv, 330 p : ill. ; 21 cm William C. Cochran 519.243 519.243 COC s 0-471-16240-X 231013 20231013081659 INLIS000000000000133 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)