00350nam a2200121Ia 450000500170000000800410001708200120005810000190007024500620008926000350015130000100018665000320019620240821151551.0240821s9999||||xx |||||||||||||| ||und||  a150 RAV  aRaven, John C. 0aHuman nature : its development, variations and assessment  aLondonbH.K. Lewis & Co.c1952  a226p.  aSociology/Social psychology