Cita APA (7th ed.)

Libecap, G. D. (1999). The sources of entrepreneurial activity: Advances in the study of entrepreneurship, innovation and economic growth. Jai Press Inc.

Cita Chicago (17th ed.)

Libecap, Gary D. The Sources of Entrepreneurial Activity: Advances in the Study of Entrepreneurship, Innovation and Economic Growth. Connecticut: Jai Press Inc, 1999.

Cita MLA (9th ed.)

Libecap, Gary D. The Sources of Entrepreneurial Activity: Advances in the Study of Entrepreneurship, Innovation and Economic Growth. Jai Press Inc, 1999.