(en-GB) Rory Carroll with Noah Smith, « California's surf wars: wave 'warlords' go to extreme lengths to defend their turf », The Guardian, (ISSN0261-3077, lire en ligne, consulté le ).
theguardian.com
(en-GB) Rory Carroll with Noah Smith, « California's surf wars: wave 'warlords' go to extreme lengths to defend their turf », The Guardian, (ISSN0261-3077, lire en ligne, consulté le ).