Grupp,Hariolf. (1998). Foundations of the economics of innovation: Theory,measurement and practice. Edward Elgar.
Παραπομπή Chicago StyleGrupp,Hariolf. Foundations of the Economics of Innovation: Theory,measurement and Practice. UK: Edward Elgar, 1998.
Παραπομπή MLAGrupp,Hariolf. Foundations of the Economics of Innovation: Theory,measurement and Practice. Edward Elgar, 1998.
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