Segnale di obbligo (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Segnale di obbligo" in Italian language version.

refsWebsite

Global rank Italian rank

2,442^nd place

1,780^th place

1,690^th place

6,763^rd place

dot.gov

Regulatory Signs, in Manual on Uniform Traffic Control Devices, Federal Highway Administration. URL consultato il 14 settembre 2007.

Vienna Convention on Road Signs and Signals (PDF), United Nations Economic and Social Council, 6 giugno 1978, pp. 44–46. URL consultato il 14 settembre 2007.