APA-viite (7. p.)

Crew, M. A., & Kleindorfer, P. R. (2005). Regulatory and Economic Challenges in the Postal and Delivery Sector. Springer US. https://doi.org/10.1007/b102100

Chicago-viite (17. p.)

Crew, Michael A., ja Paul R. Kleindorfer. Regulatory and Economic Challenges in the Postal and Delivery Sector. Boston, MA: Springer US, 2005. https://doi.org/10.1007/b102100.

MLA-viite (9. p.)

Crew, Michael A., ja Paul R. Kleindorfer. Regulatory and Economic Challenges in the Postal and Delivery Sector. Springer US, 2005. https://doi.org/10.1007/b102100.