Book (print)
The social aspects of retirement (1956)
in: Pension Research Council Monograph Series, Wharton School of Finance and Commerce, University of Pennsylvania
1
in: Pension Research Council Monograph Series, Wharton School of Finance and Commerce, University of Pennsylvania
1
4
in: Arbeitsberichte des Fachbereichs Wirtschaft- und Sozialwissenschaften, Universität Lüneburg 178
6
7
8
9
10
in: Studies in history, economics and public law No. 414
11
12
in: Resource papers for college geography 76-2
15