TY - BOOK AU - Lapin, Lawrence L. AU - ED - ED - ED - ED - SN - 155837699 SN - 2 PY - 1980///;copyright 198046 CY - New York PB - Harcourt Brace Jovanovich KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Statistics N1 - Includes index; Bibliography: p. 495-497; 5 ER -