Lua APA (7ú heag.)
Finger, M., Bukovc, B., & Burhan, M. (2014). Postal services in the digital age. IOS Press.
Lua i Stíl Chicago (17ú heag.)
Finger, Matthias, Bernhard Bukovc, agus Muqbil Burhan. Postal Services in the Digital Age. Amsterdam, Netherlands ; Fairfax, Virginia: IOS Press, 2014.
Lua MLA (9ú heag.)
Finger, Matthias, et al. Postal Services in the Digital Age. IOS Press, 2014.
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