RT Journal Article SR Electronic T1 The Science of Wealth JF British Journal of Social Medicine JO Br J Soc Med FD BMJ Publishing Group Ltd SP 240 OP 241 DO 10.1136/jech.4.4.240-a VO 4 IS 4 A1 Marshall, J. B. YR 1950 UL http://jech.bmj.com/content/4/4/240.2.abstract AB