Rerum novarum en Quadragesimo anno :
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
Urbi et orbi,
1939
Utrecht : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/C09A5185-5B44-4A9D-AE67-26E120E43D7D |
| Published: | 1939 |
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