The Men's 470 class at the 2011 ISAF Sailing World Championships was held in Perth, Australia between December 5 and 11, 2011.
References
2011 ISAF Sailing World Championships – Men's 470 Wikipedia(Text) CC BY-SA
The Men's 470 class at the 2011 ISAF Sailing World Championships was held in Perth, Australia between December 5 and 11, 2011.