Cita APA (7th ed.)

Levy, B., & Berry, R. A. (1994). Technical and marketing support systems for successful small and medium-size enterprises in four countries. World Bank.

Cita Chicago (17th ed.)

Levy, Brian, i R. Albert Berry. Technical and Marketing Support Systems for Successful Small and Medium-size Enterprises in Four Countries. Washington, DC: World Bank, 1994.

Cita MLA (9th ed.)

Levy, Brian, i R. Albert Berry. Technical and Marketing Support Systems for Successful Small and Medium-size Enterprises in Four Countries. World Bank, 1994.