289.
Amplidyne generator-voltage regulator equipment : type CR7931 NA101 for turbine-generators and synchronous condensers / General Electric
290.
Aproveitamento hidroeléctrico do Lindoso : um ensaio de valorização do património / Cristina Joana Dias Lopes
Autor:
Lopes, Cristina Joana Dias
291.
British construction equipment : building, quarring, civil engineering / The Federation of Manufacturers of Construction Equipment
292.
British construction equipment : building, quarring, civil engineering / The Federation of Manufacturers of Construction Equipment