Race regulations(PDF). Madrid: Unipublic. 2017. Archived(PDF) from the original on 29 August 2017. Retrieved 29 August 2017. {{cite book}}: |work= ignored (help)
web.archive.org
Race regulations(PDF). Madrid: Unipublic. 2017. Archived(PDF) from the original on 29 August 2017. Retrieved 29 August 2017. {{cite book}}: |work= ignored (help)