1. Cycling in towns: a quantitative investigation;Waldman, J.A.,1977
2. Annual abstract of statistics;Office, Central Statistical,1977
3. Unit for the Study of Health Policy. The NHS in the next 30years,1978
4. Poverty, development and health policy;Abel-Smith, B.; Leiserson, A.,1978
5. Quoted in "Unforeseen attack on tobacco industry.";Young, G.;Lancet,1979