Seminar on Developing Countries: Freight (1985 : University of Sussex), Planning and Transport Research and Computation International Association, PTRC Summer Meeting (13th : 1985 : University of Sussex)

Seminar on Road Maintenance Management in Developing Countries (University of Sussex)

Seminar on Transport in Developing Countries (1989 : University of Sussex), PTRC Transport and Planning Summer Meeting (17th : 1989 : University of Sussex)

Round-Table Discussion on the the Manpower Problems Associated with the Introduction of Automation and Advanced Technology in Developing Countries, Geneva, 1-3 July, 1970

Seminar on Developing Countries Highway Construction (1987 : University of Bath), Planning and Transport Research and Computation International Association, PTRC Transport and Planning Summer Meeting (15th : 1987 : University of Bath)

Coomber, D. I. (Denys Irvine), Langer, S. S., Pratt, J. M., Conference on Chemistry and Developing Countries (1991 : London)

Devereux, Stephen, Hoddinott, John

Pacey, Arnold

Morton, Kathryn, Tulloch, Peter

Acs, Zoltan J., Virgill, Nicola, author

Caldeira, Tiago N.