Ajia Keizai Kenkyūjo (Japan)
Unknown Author
M. R. Saluja
South Africa. Dept. of Statistics.
F. Charles Lamphear
Canada. Dominion Bureau of Statistics.
Statistical Office of the European Communities
Ireland. Central Statistics Office.
United Nations Industrial Development Organization
Fraser of Allander Institute.
M. S. Singal
Matthew Powell
Guo jia ji hua wei yuan hui jing ji yu ce zhong xin (China)
Zambia. Central Statistical Office
D. Amarasinghe
E. I. Demetriades