00375nam a2200121Ia 4500008004100000082001100041100002000052245008200072260004700154300001400201600001800215650002000233140224s9999    xx            000 0 und d  a316 H7  aThurstone, L.L.  aMultiple factor analysis; a development and expansion of the vectors of mind.  aChicagobUniversity of Chicago Pressc1947  axix,535p.  aL.L.Thurstone  aFactor Analysis