| General info : | | Gummerus is a brand name used by Gummerus Kustannus Oy (previously known as K. J. Gummerus Oy), a Finnish book publishing company. | |
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| Websites | | () | |
| Source : | | Wikipedia (fi.wikipedia.org/wiki/Gummerus) | |
| Relations : | | Brand name used by : Gummerus Kustannus OY | |
| Copied Wikipedia parts under license : | | Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) | |