1 Subjects: “...Slave trade / Africa...”

2 Subjects: “...Tea trade / Great Britain / History / 18th century...”

3 Subjects: “...Publishing industry & book trade / bicssc...”

4 Subjects: “...Fair trade...”

5 Subjects: “...Publishing industry & book trade / bicssc...”

6 Subjects: “...organ trade...”

7 Subjects: “...Petroleum industry and trade / Social aspects...”

8 Subjects: “... Soziologie; Soziologie; Employer; Employees; Work Relations; Industrial Relations; Trade Unions; Works...”

9 Subjects: “... Soziologie; Soziologie; Employer; Employees; Work Relations; Industrial Relations; Trade Unions; Works...”

10 Subjects: “... trade; Teaching profession; Training method; Learning process; Developmental continuity; Socialisation...”

11 Subjects: “...illegal trade...”