Cita APA (7a ed.)

European Computing Services Association & International Data Corporation. (1985). Ninth annual survey of the computing services industry in Europe. International Data Corporation.

Cita Chicago Style (17a ed.)

European Computing Services Association y International Data Corporation. Ninth Annual Survey of the Computing Services Industry in Europe. Londres?: International Data Corporation, 1985.

Cita MLA (9a ed.)

European Computing Services Association y International Data Corporation. Ninth Annual Survey of the Computing Services Industry in Europe. International Data Corporation, 1985.