Geotechnical studies of the foundation rock mass of Valhelhas dam (Portugal) / Ricardo Oliveira ... [et al.]

Geotechnical studies of the foundation rock mass of Valhelhas dam (Portugal) / Ricardo Oliveira ... [et al.] . - Lisboa : LNEC, 1975 . - 9 p. : il. 30 cm . - (Memória; 463)
624.131.25
627.82