Boucot, A. J. 1924-
Fossils of the littleton formation (Lower Devonian) of New Hampshire / by A. J. Boucot and Robert Arndt. -- Washington : United Statess Government Printing Office, 1960 - P. 41-50, [3] h. de lam. -- (Geological Survey Professional Paper ; 334-B).
Devónico
Estratigrafía
551.734
Fossils of the littleton formation (Lower Devonian) of New Hampshire / by A. J. Boucot and Robert Arndt. -- Washington : United Statess Government Printing Office, 1960 - P. 41-50, [3] h. de lam. -- (Geological Survey Professional Paper ; 334-B).
Devónico
Estratigrafía
551.734