1969 March Better Camping
1969 April Camping Guide
1970 November Better Camping
1971 January Better Camping
1971 May Better Camping
1971 July Better Camping
1971 October Better Camping
1972 February Better Camping
1972 March Better Camping
1972 August Wheels Afield
1972 October Better Camping
1973 October Better Camping
1974 March Better Camping
1975 June Popular Science
1976 March Popular Science
1977 May Popular Science
1977 October Popular Science
1984 Rand McNally Directory
1986 May Backpacker
None Available
US Patent 3,314,715
US Patent 3,377,098
US Patent 3,380,507
US Patent 3,495,866
US Patent 3,981,529
US Patent 5,769,485
