1967 132 p., 24 figs, 50 pls, frontispiece (portrait), paperbound. First few pages a little wrinkled.
1967 132 p., 24 figs, 50 pls, frontispiece (portrait), paperbound.
1967 132 p., 24 figs, 50 pls, frontispiece (portrait), paperbound. Ex library Dr. A. Brouwer (with his signature).
1967 132 p., 24 figs, 50 pls, frontispiece (portrait), paperbound.On fossils found in glacial erratics.