Birkenmajer, Krzysztof Geology of Poland : Stratigraphy. Mesozoic. - Warsaw : Geological Institute, 1976. - 859 p. : il. ; 24 cm Subjects--Topical Terms: Sistemática de estratigrafíaMesozoico Subjects--Geographic Terms: Polonia Index Terms--Genre/Form: Libro Universal Decimal Class. No.: 551.7(438)