Language universals : papers from the conference held at Gummersbach/Cologne, Germany, October 3-8, 1976 / Hansjakob Seiler
Narr Verlag , 1978
 Buku Teks
The State and economic growth : papers of a conference held on October 11-13, 1956 under the auspices of the Committee on Economic Growth
edited by Hugh G.J. Aitken
Social Science Reserch Council, 1959
 Buku Teks
Economic interdependence in Southeast Asia: proceedings of a conference held at Bangkok, 1967
edited by Theodore Morgan and Nyle Spoelstra
Published for the Center for International Economics and Economic Development by the University of Wisconsin Press, 1969
 Buku Teks
Economic interdependence in Southeast Asia : proceedings of a conference held at Bangkok, 1967
edited by Theodore Morgan and Nyle Spoelstra
University of Wisconsin Press, 1969
 Buku Teks
Education and development reconsidered: the bellagio conference papers
edited by F. Champion Ward
Praeger, 1974
 Buku Teks