Author: Campisi, B., 1968.:
Title: Microfossili e stratigrafia del Miocene inferiore e medio dei Sicani sud-occidentali.
Description: Atti Accad. Gioebnia Sci,. Nat. Catania, Ser. VI, 20: pp. 223-323, 23 plates of photos, 1 fold. map, 5 figs., refs. 4to. Offprint, orig. printed wrappers. Clear waterstain through lower half without causing actal damage.

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