• 24 Books

• 11 Railroads
• 6 Cotton
• 4 Tea
• 4 Trademarks
• 3 Equipment and supplies
• 3 Machinery industry
• 3 Petroleum industry and trade
• 3 Rubber industry and trade
• 3 Shipping
• 3 Trade shows
• 2 Banks and banking
• 2 Fish meal industry
• 2 Glass trade
• 2 Harbors
• 2 International law
• 2 Meat industry and trade
• 2 Port charges
• 2 Postal service
• 2 Rice
• 2 Wheat
• 1 Automobiles
• 1 Canals
• 1 Coal mines and mining
• 1 Coffee
• 1 Construction industry

• 24 English

• 2 Germany

• 1 Music

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