| ISBN: | 0901702579: |
|---|---|
| 题名: | Fossils of the upper Ordovician / by David A. T. Harper and Alan W. Owen. |
| 出版发行项: | London: The Palaeontological Association, 1996. |
| 载体形态: | p.312: illus. ; 21.5cm. |
| 丛编说明: | Palaeontological Association field guides to fossils: no. 7 |
| 书目附注: | Inclucdes bibliographical references and index. |