TY  - BOOK
AU  - Davenport, Lennart 
TI  - Mass communication : theory and practice
SN  - 978-1-63238-704-2
U1  - 302.23 23rd ed. 
PY  - 2019///
CY  - New York 
PB  - NY Research 
KW  - Communication
KW  - Mass media
UR  - www.nyresearchpress.com 
ER  -