Twenty years of work, 1941-1961
Subtitle: Vingt ans de realisations, 1941-1961
Published: 1962
Place of publication: Addis Ababa?
Language: eng
Other titles: Vingt ans de realisations, 1941-1961.
Notes: Title also in Amharic and Arabic; text in English, French, Amharic and Arabic.

Cover title.