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• 522- History of science and technology
  • 522-336 Life sciences
    • 522-359 Biology
      • 522-366 Botany
        • 522-367 History
          • 522-377 20th century

Title

• en : 20th century
• fr : XXe siècle.

SKOS Notation

522-377

In the plan

Francis Classification Scheme