Footnotes
- Poor , Riva . 1970 . 4 Days, 40 Hours , Cambridge, Mass. : Bursk and Poor Publishing .
- 1972 . “Leisure Boom: Biggest Ever and Still Growing,” . U.S. News & World Report , April 17 : 42
- Wheller , Kenneth . 1970 . “Small Business Eyes the Four‐Day Week,” . Harvard Business Review , 48 ( 3 ) May‐June : 142 – 147 . 147
- Robinson , John . 1969 . “Television and Leisure Time: Yesterday, Today, and (Maybe) Tomorrow,” . Public Opinion Quarterly , 33 Summer : 210 – 222 . 213
- Roper , Burns . 1971 . An Extended View of Public Attitudes toward Television and Other Mass Media, 1959–1971 , 2 New York : Television Information Office .