Beus, Alexeis A. Beryllium: evaluation of deposits during prospecting and exploratory work - San Francisco, CA W.H. Freeman and Company 1962 - 161 p. ilus. - Geology Series . Subjects--Topical Terms: BERILIOEVALUACION DE YACIMIENTOSPROSPECCION MINERA Universal Decimal Class. No.: 553.679:550.8/B42