Edit. British Museum (Natural History) 1975 London. 203p. Octavo mayor (21×13,5cm). Rústica ilustrada en buen estado. Signos de uso. «This handbook is one of the series of three devoted To British Fossils, and it is intended to provide a simple and inexpensive source of reference for those wishing to know which fossils they may expect to find from the wealth of geological horizons occirring in Britain, and to help them to identify for themselves the fossils they have collected. The handbooks are intended to serve the needs of both amateurs and those seriously studying geology».