APA-viite (7. p.)

ebrary, Inc, Gullberg, A., & Isaksson, K. (2009). Congestion taxes in city traffic: Lessons learnt from the Stockholm trial. Nordic Academic Press.

Chicago-viite (17. p.)

ebrary, Inc, Anders Gullberg, ja Karolina Isaksson. Congestion Taxes in City Traffic: Lessons Learnt from the Stockholm Trial. Lund: Nordic Academic Press, 2009.

MLA-viite (9. p.)

ebrary, Inc, et al. Congestion Taxes in City Traffic: Lessons Learnt from the Stockholm Trial. Nordic Academic Press, 2009.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.