TY  - BOOK
AU  - Krippendorff,Klaus
TI  - Content analysis: an introduction to its methodology 
T2  - The Sage commtext series
SN  - 0803914970
AV  - P93 .K74
PY  - 1980///
CY  - Newbury Park,Calif., London
PB  - Sage Publications
KW  - Content analysis(Communication)
N1  - Bibliography, p
ER  -