Columbia subject headings:
Geology--Bibliography.
Geology--Caribbean Area--Bibliography.
Geology--Central America--Bibliography.
Paleontology--Caribbean Area--Bibliography.
Paleontology--Central America--Bibliography.
Harvard subject headings:
Geology--Caribbean Area--Bibliography.
Geology--Central America--Bibliography.
Paleontology--Caribbean Area--Bibliography.
Paleontology--Central America--Bibliography.
Princeton subject headings: