Cita APA (7a ed.)

Ward, J., Griffiths, P. M., & Whitmore, P. (1991). Strategic planning for information systems. John Wiley & Sons.

Cita Chicago Style (17a ed.)

Ward, John, Pat M. Griffiths, y Paul Whitmore. Strategic Planning for Information Systems. Chichester [etc.]: John Wiley & Sons, 1991.

Cita MLA (9a ed.)

Ward, John, et al. Strategic Planning for Information Systems. John Wiley & Sons, 1991.