1. and , The Analysis of Engineering Structures, Edward Arnold, London, 1922.
2. Non-linear and Dynamic Programming, Addison-Wesley, 1964, Chap. 4.
3. ‘Method of non-linear Programming’, Proc. Symp. Inst. Math. Applic., Keele University, 1968.
4. Plastic design of beams and plane frames for minimum material consumption