TY  - BOOK
AU  - SILLS DAVID L.
TI  - INTERNATIONAL ENCYCLOPEDIA OF THE SOCIAL SCIENCES  VOL. 13
U1  - 300.3  SIL-I.13-14 
PY  - 1968///
KW  - TERNATIONAL ENCYCLOPEDIA OF THE SOCIAL SCIENCES  VOL. 13  SILLS DAVID L
ER  -