Catalogue of additions to the manuscripts in the British Museum in the years ...
APA Citation
British Museum. Dept. of Manuscripts. (18501967). Catalogue of additions to the manuscripts in the British Museum in the years ... London: Printed by order of the trustees.
MLA Citation
British Museum. Dept. of Manuscripts. Catalogue of Additions to the Manuscripts In the British Museum In the Years ... London: Printed by order of the trustees, 18501967.
Warning: These citations may not always be complete (especially for serials).