Actes du congrès - International Speleological Congress; International Speleological Congress ([Paris] : [publisher not identified], 1953)
Title varies slightly according to host country.
Actes for 1953 issued in four vols.; vols. 2-4 have title: Communications.
Mode of access: Internet.
French, Italian, German, or English.
Imprint varies.
Keywords: Speleology -- Congresses