00807nam a2200265Ia 4500 151332 BIBL 20160527195745.0 710301s1971 njua b 00110 eng 72125874 //r86 0877780129 CACG P90 .B68 301.161 001.553 B845t Bretz, Rudolf. Local 65272 A taxonomy of communication media [by] Rudy Bretz. Englewood Cliffs, N.J. Educational Technology Publications [1971] xxiv, 168 p. illus. 24 cm. 4.95 A Rand Corporation research study Local 48165 Includes bibliographical references. Mass media Local 132485 Rand Corporation research study. 124831 124831 0 0 0 001_553000000000000_B845T 0 abl 281193 1 1 17 2016-05-27 226652 0 001.553 B845t mq226652 2016-05-27 00:00:00 r:151332 z:NCC:D 6 0 0 0 001_553000000000000_B845T 0 abl 281199 1 1 17 2016-05-27 226651 0 001.553 B845t mq226651 2016-05-27 00:00:00 r:151332 z:NCC:D 6