Actes du Conseil Général Proceedings of the General Council VOL. XXXI, 31e Session Helsinki 1965 August 15–21 août

Book

Renewal of town and village III Proceedings of the IULA Congress Belgrade, June 14th to 20th, 1965

Book

Eleventh Conference of the International Bar Association Lausanne, Switzerland, July 11–15, 1966

Book

Second Catalogue of Publications of International Congresses and Conferences

Book

The Management of Public Utilities by Local Authorities II Proceedings of the IULA Congress Bangkok, February 6th to 11th, 1967

Book

Xth International Astronautical Congress London 1959 / X. Internationaler Astronautischer Kongress / Xe Congrès International d’Astronautique

Book

1964/65

Book

VIIIth International Astronautical Congress Barcelona 1957 / VIII. Internationaler Astronautischer Kongress / VIIIe Congrès International D’Astronautique