Παραπομπή σε μορφή APA (7η εκδ.)

Gass, S. I., & Assad, A. A. (2005). An Annotated Timeline of Operations Research: An Informal History. Springer Science + Business Media, Inc.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gass, Saul I., και Arjang A. Assad. An Annotated Timeline of Operations Research: An Informal History. Boston, MA: Springer Science + Business Media, Inc, 2005.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gass, Saul I., και Arjang A. Assad. An Annotated Timeline of Operations Research: An Informal History. Springer Science + Business Media, Inc, 2005.