(1975). Fourth world congress on the theory of machines and mechanisms: Papers read at the Congress at the University of Newcastle upon Tyne, 8-12 September, 1975. London: Mechanical Engineering Publications.

Fourth World Congress On the Theory of Machines and Mechanisms: Papers Read At the Congress At the University of Newcastle Upon Tyne, 8-12 September, 1975. London: Mechanical Engineering Publications, 1975.

Fourth World Congress On the Theory of Machines and Mechanisms: Papers Read At the Congress At the University of Newcastle Upon Tyne, 8-12 September, 1975. London: Mechanical Engineering Publications, 1975.