Guidebook for excursions
By: International Geological Congress, XXth session, Mexico, 1956.
Edition: English ed.
Publisher: s.n.
Published: 1956
Place of publication: [s.l
Language: eng
Subjects: Geology -- Congresses.; Geology -- Mexico.
Genres: Congresses.
Notes: Part of illustrative matter in pockets.

Includes bibliographies.