Cita APA (7a ed.)

Libecap, G. D. (1999). The sources of entrepreneurial activity. Jai.

Cita Chicago Style (17a ed.)

Libecap, Gary D. The Sources of Entrepreneurial Activity. Stamford, Connecticut: Jai, 1999.

Cita MLA (9a ed.)

Libecap, Gary D. The Sources of Entrepreneurial Activity. Jai, 1999.