Latent structure analysis [by] Paul F. Lazarsfeld [and] Neil W. Henry. Lazarsfeld, Paul Felix. Henry, Neil W., joint author. Latent structure analysis. QA278.6 .L35 536.42 LAL Bibliography: p. 288-292. New York, Houghton, Mifflin [1968] [1968] 1968 Text ix, 294 p. eng