Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) ...
vol. VI-VIII
Supplement.

APA Citation

British Museum (Natural History). Library., Woodward, B. Barham. (192240). Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) ... London: Printed by order of the trustees.

MLA Citation

British Museum (Natural History). Library, and Bernard Barham Woodward. Catalogue of the Books, Manuscripts, Maps And Drawings In the British Museum (Natural History) ... London: Printed by order of the trustees, 192240.

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