Columbia subject headings:
Geology, Structural--Congresses.
Gondwana (Continent)--Congresses.
International Gondwana Symposium (6th : 1985 : Columbus, Ohio)
Harvard subject headings:
Geology, Structural--Congresses
Gondwana (Continent)--Congresses.
International Gondwana Symposium (6th : 1985 : Ohio State University)
Princeton subject headings:
Geology, Structural--Congresses.
Gondwana (Continent)--Congresses.