Style de citation APA (7e éd.)

Keen, J. S. (1987). Managing systems development (2nd ed.). John Wiley & Sons.

Style de citation Chicago (17e éd.)

Keen, Jeffrey S. Managing Systems Development. 2nd ed. Chichester [etc.]: John Wiley & Sons, 1987.

Style de citation MLA (9e éd.)

Keen, Jeffrey S. Managing Systems Development. 2nd ed. John Wiley & Sons, 1987.