TY - BOOK AU - Rogers,Everett M. AU - Shoemaker,F.Floyd TI - Communication of innovations : : a cross-cultural approach / U1 - 301.242 PY - 1971/// CY - New York : PB - Free Press, KW - Social change KW - Cross-cultural studies KW - Technological innovations KW - Social aspects KW - Diffusion of innovations N1 - Bibliography: p. 387-466 ER -