Media effects research :

Sparks, Glenn G.

Media effects research : a basic overivew / Glenn G. Sparks. - 3rd ed. - Boston, MA : Wadsworth, 2009. - xix, 265 P. ; 23.5 cm.

Includes index

9780495568544 0495568546

2008940347

P91.3 / .S63 2008