Little, Roderick J. A. Statistical analysis with missing data / Roderick J.A. Little, Donald B. Rubin. - New York : Wiley, c1987. - xiv, 278 p. - Wiley series in probability and mathematical statistics. Applied probability and statistics . ISBN: 0471802549 Subjects--Topical Terms: Mathematical statistics.Missing observations (Statistics) LC Class. No.: QA276 / .L57 1987