Memoria de la expedición magnética a Mérida y Campeche
By: por el ing. Joaquín Gallo.
Series: Instituto panamericano de geografía e historia ... Publicación; no. 29
Publisher: Imprenta Reveles
Published: 1937
Place of publication: México, D.F
Language: spa
Number of pages: 27
Subjects: Geomagnetism -- Mexico.