The following sources were consulted in the preparation of the article “12 old-school problems people today couldn’t handle.”
- The 1960 Census of Housing Findings
- The Changing Media Landscape
- Buckling Up: Technologies to Increase Seat Belt Use — Special Report 278 (2004)
- The Consumer Electronics Hall of Fame: Motorola Advisor Pager
- Learn about AT&T Directory Assistance
- 15 Years Ago, New York City’s Subway Tokens Rode Off Into the Sunset
