TY - BOOK AU - Fleiss, Joseph L. TI - Statistical methods for rates and proportions 2nd ed SN - 0-471-06428-9 U1 - 519.22 PY - 1981/// CY - New York PB - John Wiely and Sons KW - Management KW - Statistics -- Mathematical statistics N1 - 15481 / 30.09.1986; management, biostatistics, statistical methods ER -