Style de citation APA (7e éd.)
Ennals, R. (1995). Executive guide to preventing information technology disasters (1.vyd.). Springer Verlag.
Style de citation Chicago (17e éd.)
Ennals, Richard. Executive Guide to Preventing Information Technology Disasters. 1.vyd. Berlin: Springer Verlag, 1995.
Style de citation MLA (9e éd.)
Ennals, Richard. Executive Guide to Preventing Information Technology Disasters. 1.vyd. Springer Verlag, 1995.
Attention : ces citations peuvent ne pas être correctes à 100%.