Preliminary reports on the study of non-calcareous microplankton assemblages from the Upper Cretaceous of the northern Apennines
Reference:
Corradini,D. (1971)
Preliminary reports on the study of non-calcareous microplankton assemblages from the Upper Cretaceous of the northern Apennines Proceedings of the 2nd Planktonic Conference, Rome, 1970; Edizioni Tecnoscienza, Rome. (A. Farinacci, editor)
Vol. 1 P. 321- 329