国際地理学連合
From 1963 to 1978 he also co-directed the Madingley Geography Conferences. In 1964 was appointed British representative to the Commission on Quantitative Techniques of the International Geographical Union, where he was nominated chairman in 1968. In the same year he was also appointed Chairman of the Committee on the Role of Models and Quantitative techniques in Geographical Teaching of the Geographical Association.