• Managing editor of General Topology and its Applications, an international journal devoted to set-theoretic, axiomatic and geometric topology, from its inception in 1970 till 1979. Advisory board member of Topology and its Applications (renamed) from 1979 through 1993.
  • Co-editor of the Proceedings of the Kanpur Topological Conference, General Topology and its Relations to Modern Analysis and Algebra, Prague, 1971.
  • Co-editor of Topology: Proceedings of the Memphis State University Topology Conference, Lecture Notes in Pure and Applied Mathematics. Marcel Dekker, New York, 1976.