Παραπομπή σε μορφή APA (7η εκδ.)

Butler, J. J. (1994). Contingency planning and disaster recovery strategies. Computer Technology Research Corp.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Butler, Janet J. Contingency Planning and Disaster Recovery Strategies. Charleston: Computer Technology Research Corp, 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Butler, Janet J. Contingency Planning and Disaster Recovery Strategies. Computer Technology Research Corp, 1994.