Cita APA (7th ed.)

freeman, C. (1982). The economics of industrial innovation (2th. ed.). Christopher freeman.

Cita Chicago (17th ed.)

freeman, Christopher. The Economics of Industrial Innovation. 2th. ed. london: Christopher freeman, 1982.

Cita MLA (9th ed.)

freeman, Christopher. The Economics of Industrial Innovation. 2th. ed. Christopher freeman, 1982.