Items where Subject is "520 ASTRONOMY"

[up]

Dewey Subject Headings (5591)
- 500 NATURAL SCIENCES & MATHEMATICS (798)
  - 520 ASTRONOMY (7)
    - 520 Astronomy & allied sciences (1)
    - 525 Earth (Astronomical geography) (1)
    - 527 Celestial navigation (1)
    - 529 Chronology (4)

Number of items at this level: 0.

This list was generated on Sun Jun 1 00:59:31 2025 UTC.