Invariance :
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
s.n.,
1989?]
[S.l. : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/214DD98D-8178-4440-93AA-DC664069369E |
| Published: | 1989?] |
|---|