The Bloomsbury site for rehousing the reference collections of the British Library /
... British Library Board ....
APA Citation
British Library. Board. (1975). The Bloomsbury site for rehousing the reference collections of the British Library. [London]: [The Board].
MLA Citation
British Library. Board. The Bloomsbury Site for Rehousing the Reference Collections of the British Library. [London]: [The Board], 1975.
Warning: These citations may not always be complete (especially for serials).