Revue des questions scientifiques

Ön Kapak
Société scientifique de Bruxelles., 1950
The March and May numbers of v. 97, 1930, combined in one issue, comprise a special series of articles on the Belgian Congo (Le Congo Belge et les sciences) published on the occasion of the centenary of Belgian independence. A separate map (Carte administrative du Congo Belge et de ses voies de communication) accompanies this combined issue, and is designated as "supplément à la Revue des questions scientifiques, mars-mai 1930."

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BECK A H W Velocity modulated thermionic tubes P Goedertier 293
123
DAVIES M The Physical principles of Gas Liquefaction and
133
Géographie botanique Etude de la végétation G L D
136

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