Expo '85
Subtitle: world exhibition of achievements of young inventors, Plovdiv, Bulgaria
By: [organized by the Government of the People's Republic of Bulgaria in cooperation with the World Intellectual Property Organization].
Contributors: World Intellectual Property Organization.
Series: Bulletin / Organizing Committee for the World Exhibition ;; 2
Publisher: WIPO
Published: 1985
Place of publication: [Plovdiv, Bulgaria?
Language: eng
Number of pages: 16