Author: Schermerhorn, L.J.G.C.E., 1959.:
Title: Igneous, metamorpic, and ore geology of the Castro-Daire-São Pedro do Sul-Satão region (Northern Portugal). [Comun. Serv. Geol. Portugal, 37.]
Description: Lisboa. 8vo. Pp. xvi,618,[12], 48 photos of outcrops and rock specimens on 24 pls., 1 fold. col. geol. map (scale 1:50,000) in pocket, 103 figs., bibl. Cloth. - Thesis, University of Amsterdam.

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