A UNITAR regional study
Published for the United Nations Institute for Training and Research by Africana Pub. Co
by Berhanykun Andemicael
Published for the United Nations Institute for Training and Research by Africana 1976 A UNITAR regional study no. 2
所蔵館4館
by Aida Luisa Levin
United Nations Institute for Training and Research 1974 A UNITAR regional study no. 4
所蔵館5館
by Sir Peter Smithers
United Nations Institute for Training and Research 1973 A UNITAR regional study no. 3
所蔵館3館
by A.H. Robertson
UNITAR 1972 A UNITAR regional study no. 1