Monthly Bulletins.

  • Publisher: Observatory printing office
  • Print ISSN:
  • Electronic ISSN:
  • OCLC Number: 490098538
  • Subject: Geomagnetism Philippines.
  • Subject code: QC
  • Publication history:

Print Holdings

Archiving Institution Program Holdings Description Retention
HathiTrust (HATHI) HTDL 1901; 1903-1913; 1913-1914; 1914-1915; 1915-1916; 1916-1917; 1917-1918; 1918-1922; 1924; 1925 Jan-Apr; 1925 May-Aug; 1925 Sep-Dec permanent