Cita APA (7th ed.)

Ward, J., Griffiths, P., & Whitmore, P. (1990). Strategic planning for information systems. John Wiley.

Cita Chicago (17th ed.)

Ward, John, Pat Griffiths, i Paul Whitmore. Strategic Planning for Information Systems. Chichester: John Wiley, 1990.

Cita MLA (9th ed.)

Ward, John, et al. Strategic Planning for Information Systems. John Wiley, 1990.