"2014 American Camper Report"(PDF). The Coleman Company, Inc. and the Outdoor Foundation. Arkiveret fra originalen(PDF) 5. april 2015. Hentet 17. juni 2015.
"2014 American Camper Report"(PDF). The Coleman Company, Inc. and the Outdoor Foundation. Arkiveret fra originalen(PDF) 5. april 2015. Hentet 17. juni 2015.