Magnetograms and hourly values, San Juan, P. R.
By: Coast and Geodetic Survey.
Series: United States. Coast and Geodetic Survey ;; MHV-SJ
Publisher: Coast and Geodetic Survey
Published: 1950
Place of publication: Washington
Language: eng
Subjects: Geomagnetism -- Puerto Rico.
Notes: Includes bibliographical references.
Formed by the union of its Magnetograms and its Magnetic hourly values.