Leipzig, 1882, in-8, br. Mancante della copertine.

Economia, statistica

Bonn, 1923, in-8, br.

Bonn, 1923, in-8, br.

Bologna, 1974, in-8, br. Copertina figurata.

Bologna, 1974, in-8, br. Copertina figurata.

Paris, 1917, in-8, br.

(Politica)

Berlin, 1885, in-8, br.

Berlin, 1885, in-8, br.

Roma, 1981, in-8, br.

Economia.

Sao Paulo, 1945, in-8, br.

Sao Paulo, 1945, in-8, br.

Zürich, 1914, in-8, br.

Zürich, 1914, in-8, br.

Milano, 1933, in-8, br.

(Politica)

Paris, 1945, in-8, br.

Economia.

Berlin, 1976, in-8, br.

Berlin, 1976, in-8, br.

Genova, 1985, in-8, br.

Genova, 1985, in-8, br.