Columbia subject headings:
Geology, Stratigraphic--Cretaceous--Congresses.
Geology, Stratigraphic--Paleogene--Congresses.
Geology--California--Lake Nacimiento--Congresses.
Harvard subject headings:
Geology, Stratigraphic--Cretaceous
Geology, Stratigraphic--Cretaceous--Guidebooks.
Geology, Stratigraphic--Tertiary
Geology, Stratigraphic--Tertiary--Guidebooks.
Geology--California--Lake Nacimiento--Guidebooks.
Geology--California--Nacimiento, Lake, Region--Guidebooks.
Princeton subject headings:
Geology, Stratigraphic--Cretaceous--Congresses.
Geology, Stratigraphic--Paleogene--Congresses.
Geology--California--Lake Nacimiento--Congresses.