Directory of international scientific organizations.

Directory of international scientific organizations.

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書目詳細資料
企業作者: Unesco
格式: 圖書
語言:English
出版: Paris UNESCO [c1950]
叢編:Unesco publication 619.
主題:
Science > Societies, etc. > Directories.
Agriculture > Societies, etc. > Directories.
Engineering > Societies, etc. > Directories.