1958. Abh. Deu. Akad. Wiss. Berlin 1958-1; 19 pp. 8 fig. 8 photoplts. h.t. Orig. wrps. upper left corner with stain throughout but mostly in blanc corner, not too obtrusive, otherwise very good, 4to.
2010. Geological Society of America Special Paper 464; 291 pp. numerous fig./phot. partly col. 1 CD-ROM with supplementary material. Paperback, very good, as new, 4to.