Title: Eocene rocks in northeast Washington--radiometric ages and correlation
First published: 1977
Subjects: Geology, Geology, Stratigraphic, Potassium-argon dating, Stratigraphic Geology, Stratigraphic correlation
Places: British Columbia, Washington (State)
Time periods: Eocene
LC classification: QE75 .B9 no. 1433, QE692.2 .B9 no. 1433