Cald wells screw tug design

Míreanna Comhchosúla

• Screw tug design rev by Jeffrey N Wood /
  le: Caldwell, Allam
  Foilsithe: (1969)
• Tugs, towboat and towing
  le: Brady, Edward M
  Foilsithe: (1967)
• The fifth international tug convention
  le: Troup, D Kenneth Ed. by
• Marx and the Third world Tr by Pat Ransford and ed by Malcolm cald well /
  le: Melotti, Umberto
  Foilsithe: (1977)
• The design of marine screw propellers
  le: O'Brien, T P
  Foilsithe: (1969)