The geocentric direction cosines of seismological observatories
By: With an introd. by Harold Jeffreys. International seismological summary
Publisher: Kew Observatory
Published: 1950
Place of publication: Richmond, Surrey
Language: eng
Number of pages: 14
Subjects: Seismometry
Notes: At head of title: British Association for the Advancement of Science. Gray-Milne Trust and UNESCO.

"References": p. viii.