Cita APA (7a ed.)

Hippel, E. v. (1982). Appropriability of innovation benefit as a predictor of the source of innovation. [s.n.].

Cita Chicago Style (17a ed.)

Hippel, Eric von. Appropriability of Innovation Benefit as a Predictor of the Source of Innovation. [S.l.]: [s.n.], 1982.

Cita MLA (9a ed.)

Hippel, Eric von. Appropriability of Innovation Benefit as a Predictor of the Source of Innovation. [s.n.], 1982.