Symposium on conodont biostratigraphy | W.C. Sweet and S.M. Bergström (Editors), 1970. The Geological Society of America Boulder,Colo., [issued, 1971], 499 pp., 78 fig., 15 plates,U.S. $ 15.00. [Place orders from continental Europe with Office International de Librairie, 30 Avenue Marnix,B-1050 Brussels.] |