Παραπομπή σε μορφή APA (7η εκδ.)

Wellman, G. L. (2003). A Delphi Expert Assessment of Proactive Contracting in an Evolutionary Acquisition Environment. Theses and Dissertations.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wellman, Gary L. "A Delphi Expert Assessment of Proactive Contracting in an Evolutionary Acquisition Environment." Theses and Dissertations 2003.

Παραπομπή σε μορφή MLA (9th εκδ.)

Wellman, Gary L. "A Delphi Expert Assessment of Proactive Contracting in an Evolutionary Acquisition Environment." Theses and Dissertations, 2003.