This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by editing the page to add missing items, with references to reliable sources.
↑Frank Huisman (1992). Stadsbelang en standsbesef: gezondheidszorg en medisch beroep in Groningen 1500-1730 (in Dutch). Erasmus Publishing. ISBN978-90-5235-037-0.
1234"Historie: 1000 jaar Groningen". Groninger Archieven: Regionaal Historisch Centrum (in Dutch). Groninger Archieven. Retrieved 30 October 2015. (chronological history)
↑Sandi E. Cooper (1991). "Peace Societies". Patriotic Pacifism: Waging War on War in Europe, 1815–1914. Oxford University Press. ISBN978-0-19-536343-2.
G. van Herwijnen, ed. (1978). "Groningen". Bibliografie van de stedengeschiedenis van Nederland[Bibliography of Urban History in the Netherlands] (in Dutch). Brill. pp.26+. ISBN90-04-05700-5.
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.