1. M. A. Rao andJ. L. Throne,Principles of Rotational Moulding,12(4) (1972) 237.
2. P. F. Bruins, ?Basic Principles of Rotational Moulding? (Gordon and Breach, New York, 1971).
3. J. Jackson,Engineering,2 February (1989) 63.
4. K. Iwakura, Y. Ohta, C. H. Chen andJ. L. White,Int. Polym. Proc. IV (1989) 2.
5. P. J. Nugent, PhD thesis, Queen's University, Belfast (1990).