APA aipamena

Freeman, C. (1990). The Economics of innovation. E. Elgar.

Chicago Style aipamena

Freeman, Christopher. The Economics of Innovation. Aldershot, Hants, England, Brookfield, Vt., USA: E. Elgar, 1990.

MLA aipamena

Freeman, Christopher. The Economics of Innovation. E. Elgar, 1990.