TY  - BOOK
AU  - Krippendorff,Klaus
TI  - Content analysis: an introduction to its methodology 
SN  - 0803914970
U1  - 001.51 
PY  - 1980///
CY  - Beverly Hills
PB  - Sage Publications
KW  - Content analysis (Communication)
N1  - Bibliography: p. 181-189. Includes index
ER  -