TY  - BOOK
AU  - Daniel Riffe, Stephen Lacy, Frederick Fico, Brendan Watson
TI  - Analyzing Media Messages: Using Quantitative Content Analysis in Research, 4 ed
SN  - 9780429464287
PB  - Taylor and Francis
UR  - http://www.taylorfrancis.com/books/9780429464287
ER  -