Great Britain. Parliament. (1888). Papers relative to King Ja Ja of Opobo and to the opening of West African markets to British trade. Printed for H.M.S.O. by Harrison and Sons.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Great Britain. Parliament. Papers Relative to King Ja Ja of Opobo and to the Opening of West African Markets to British Trade. London: Printed for H.M.S.O. by Harrison and Sons, 1888.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Great Britain. Parliament. Papers Relative to King Ja Ja of Opobo and to the Opening of West African Markets to British Trade. Printed for H.M.S.O. by Harrison and Sons, 1888.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.