00542nam a2200157Ia 4500003000600000005001700006008004100023040002500064082001900089100004500108245010300153250001900256260003500275300002700310500004700337NORSU20240313024558.0240215s9999    xx            000 0 und d  aNORSU-DumcNORSU-Dum  a303.4/R63/1971  aRogers, Everett M. & Shoemaker, Floyd F. 0aCommunication of Innovations: A Cross-Cultural ApproachcBy Everett M. Rogers & F. Floyd Shoemaker  aSecond Edition  bThe Free Pressc1971aNew York  axix, 476 pages, 24 cm.  ainclude bibliographic references and index