Columbia subject headings:
Antislavery movements--Great Britain.
Slave trade--Africa.
Slave trade--America.
Slave trade--Great Britain.
Harvard subject headings:
Antislavery movements--Great Britain
Slave trade--Africa
Slave trade--America.
Slave trade--Great Britain
Princeton subject headings:
Antislavery movements--Great Britain.
Slave trade--Africa.
Slave trade--America.
Slave trade--Great Britain.