APA (7th ed.) Citation

Barber, J., Metcalfe, J. S., & Porteous, M. (1990). Barriers to growth in small firms (1. publ.). Routledge.

Chicago Style (17th ed.) Citation

Barber, John, John S. Metcalfe, and Mike Porteous. Barriers to Growth in Small Firms. 1. publ. London ; New York: Routledge, 1990.

MLA (9th ed.) Citation

Barber, John, et al. Barriers to Growth in Small Firms. 1. publ. Routledge, 1990.