Tariff settled between Great Britain and Turkey, on the 31st October, 1850 :
to be in force from January 1, 1847, to March 13, 1855.

APA Citation

Great Britain., Turkey. (1851). Tariff settled between Great Britain and Turkey, on the 31st October, 1850: to be in force from January 1, 1847, to March 13, 1855. London: Printed by Harrison and Son.

MLA Citation

Great Britain, and Turkey. Tariff Settled Between Great Britain And Turkey, On the 31st October, 1850: to Be In Force From January 1, 1847, to March 13, 1855. London: Printed by Harrison and Son, 1851.

Warning: These citations may not always be complete (especially for serials).