BOUCEK, BEDRICH - The dendroid graptolites of the Silurian of Bohemia.

1957. Ceskosl. Akad. Rozpravy Ustr. Ust. Geol. 23; 294 pp. 74 fig. 39 plts. h.t. loose in back flap. Orig. wrps. front cover with rope stains, spine and attachment back cover repaired with tape, contents and plates very good, 4to.