TY - BOOK AU - Nie, Norman H. TI - SPSS : statistical package for the social sciences SN - 0-07-046531-2 PY - 1975/// CY - New York PB - McGraw-Hill Book Company KW - 303.7:681.3.06 KW - med KW - por KW - 681.3.06:303.7 ER -