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Blue Book

certificate of incapacity for military service
Thing Q21992982
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Blue Book

Summary

Blue Book is a Q20057240[1].

Key Facts

  • Blue Book is in the country of Czechoslovakia[2].
  • Blue Book is in the country of Czech Republic[3].
  • Blue Book is in the country of Slovakia[4].
  • Blue Book's image is recorded as Modrá knížka 01.jpg[5].
  • Blue Book's instance of is recorded as Q20057240[6].
  • Blue Book's Commons category is recorded as Blue Book (certificate of incapacity for military service)[7].
  • Blue Book's Google Knowledge Graph ID is recorded as /g/11bxfygm9d[8].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Blue Book. Retrieved May 3, 2026, from https://4ort.xyz/entity/blue-book-q21992982
MLA “Blue Book.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/blue-book-q21992982.
BibTeX @misc{4ortxyz_blue-book-q21992982_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Blue Book}}, year = {2026}, url = {https://4ort.xyz/entity/blue-book-q21992982}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Blue Book — https://4ort.xyz/entity/blue-book-q21992982 (retrieved 2026-05-03)

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