Observation of dams, methods and apparatus used in Portugal- / Manuel Rocha, J. Laginha Serafin, A.F. de Silveira.
Rocha, Manuel.
Observation of dams, methods and apparatus used in Portugal- / Manuel Rocha, J. Laginha Serafin, A.F. de Silveira. - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil - 28 p. - Technical paper; No.104 / Laboratorio Nacional de Engenhari-a Civil .
Observation of dams, methods and apparatus used in Portugal- / Manuel Rocha, J. Laginha Serafin, A.F. de Silveira. - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil - 28 p. - Technical paper; No.104 / Laboratorio Nacional de Engenhari-a Civil .