Author	Cramer, F.H.
Year	1964b
Journal	Leidse Geologische Mededelingen, v.30, pp.253-361.
Title	Microplancton from three Palaeozoic formations in the Province de Leon, NW Spain.

Abstract Cramer, F.H., 1964; Microplancton from three Palaeozoic formations in the Province de Leon, NW Spain. Leidse Geologische Mededelingen, v.30, pp.253-361