Stratigraphic Boundary Problems : Permian and Triassic of West Pakistan. Edited by Kummel and Teichert. 1970.
Hardback. 474 pages with 22 B/W plates ( some of fossils) and numerous illustrations and figures. Very informative. Ex Library copy. A scarce publication. In very good condition.
Book : 18 x 26 x 4 cm.
