Tian, Guo-Liang Incomplete categorical data design: Non-randomized response techniques for sensitive questions in surveys - Boca Raton CRC Press 2014 - xix, 301 p. 1962 09/02/2015 APD1012981 16/02/2015 Main Budget ISBN: GBP57.99 Dewey Class. No.: 519.57 T431I