Free to read here, from Project Gutenberg.
7 titles
Sidney Morgan
Exposição internacioncal de borracha de New York Brazil. Commissão and Associação Comercial do Amazonas
Portuguese
Edith A. Browne
William H. Richardson, of Boston
T. O'Conor Sloane
United States Rubber Company, also an audiobook
Rudolf Schlechter and Deutsche Kolonialgesellschaft. Kolonial-Wirtschaftliches Komitee
German
