1. Breckenfeld , Gurney Is the One-Family House Becoming a Fossil? Far From It Fortune 1976 93 4 84 89 165
2. Bulkeley , William M. Raising the Roof: Baby Boom of 1947-57, A Key Economic Force, Now Spurs Home Sales Wall Street Journal 1978 1
3. Des Moines Register. lowa Housing Prices Go Through the Roof 1978 1 9A