Piccini, Mabel. creator Nethol, Ana María. text bibliography mx México, D.F Editorial Trillas 1990 , 1997 1997 2a ed. ; 1ra. reimpr. monographic spa 141 p. ill. 20 cm. specialized Mabel Piccini[ y] Ana María Nethol. Includes bibliographical references , indexes and a glossary. Communication Study and teaching Mass media Research Mass media Methodology Communication Methodology 9682435323(hardcover) TXE 970701 20160527185903.0 250814