El Jurásico Medio y el Calloviano de México
By: por H.K. Erben.
Contributors: International Geological Congress (20th : 1956 : Mexico City, Mexico)
Publisher: [s.n.]
Published: 1956
Place of publication: México
Language: spa
Number of pages: 140
Subjects: Geology, Stratigraphic -- Jurassic.; Geology -- Mexico.
Notes: Bibliography: p. 131-133.
"Contribución al Congreso, del Instituto de Geología de la Universidad Nacional Autónoma de México."
At head of title: XX Congreso Geológico Internacional.
Illustrated matter and 5 folded maps in pocket.