Cita APA (7a ed.)

Barber, J., Metcalfe, J. S., & Porteous, M. (1989). Barriers to growth in small firms ([1st publ.].). Routledge.

Cita Chicago Style (17a ed.)

Barber, John, J. S. Metcalfe, y M. Porteous. Barriers to Growth in Small Firms. [1st publ.]. London [etc.]: Routledge, 1989.

Cita MLA (9a ed.)

Barber, John, et al. Barriers to Growth in Small Firms. [1st publ.]. Routledge, 1989.