Trade of comodity
[United Nations. Economic Commission]
***記述は遡及データによる
Economic Commission for Africa = Commission economique pour l'Afrique
United Nations. Economic Commission for Africa 1967 Trade of comodity Series B ; No. 16 , United Nations publication Sales no. 70, II.K.3
所蔵館1館
[United Nations. Economic Commission] 1966 Trade of comodity Series B , United Nations publication Sales no. 67, II.K. 1