Putnam RD, Bridgeland JM. A Nation of Doers Needs to Do More. Philadelphia Inquirer [Internet]. 2004. Publisher's Version

Helliwell J, Putnam RD. The Social Context of Well-Being. Philosophical Transactions of the Royal Society (London), Series B [Internet]. 2004;359 (31 August 2004) :1435-1446. Publisher's Version

Putnam RD. Commentary: ‘Health by association’: some comments. International Journal of Epidemiology [Internet]. 2004;(33) :1-4. Publisher's Version

Putnam RD. Education, Diversity, Social Cohesion and ‘Social Capital’. Dublin, Ireland: OECD Education Ministers; 2004.