"Contact usArchived 2009-06-22 at the Wayback Machine.", NH Hotels Group. Retrieved on 24 January 2011. "Address: Investor Relations Department c/ Santa Engracia 120 28003 Madrid."
"Contact usArchived 2009-06-22 at the Wayback Machine.", NH Hotels Group. Retrieved on 24 January 2011. "Address: Investor Relations Department c/ Santa Engracia 120 28003 Madrid."