Cita APA (7a ed.)

Lydall, H. (1992). The entrepreneurial factor in economic growth. Macmillan academic and professional ltd.

Cita Chicago Style (17a ed.)

Lydall, Harold. The Entrepreneurial Factor in Economic Growth. London [etc.]: Macmillan academic and professional ltd, 1992.

Cita MLA (9a ed.)

Lydall, Harold. The Entrepreneurial Factor in Economic Growth. Macmillan academic and professional ltd, 1992.