1971 xiv, 390 p., num. figs & pls, 4to, paperbound. Smithsonian contributions to paleobiology. Number 3.With 30 contributions of which about 20 on Brachiopods.
1971 xiv, 390 p., num. figs & pls, 4to, hardbound. Smithsonian contributions to paleobiology. Number 3. Good, hardbound copy.With 30 contributions of which about 20 on Brachiopods.