TY  - BOOK
AU  - Pool I. De Sola
TI  - Trends in content analysis
U1  - 001.42 
PY  - 1959///
CY  - Urbana
PB  - University of press
KW  - Content analysis
N1  - Papers of the work Conference on Content Analysis of the Committee on Linguistics and Psychology. Social seience Researc
ER  -