Catalogue of the Machaeridia (Turrilepas and its allies) in the Department of Geology,
by Thomas Henry Withers ... with eight plates.

APA Citation

British Museum (Natural History). Dept. of Geology., Withers, T. Henry. (1926). Catalogue of the Machaeridia (Turrilepas and its allies) in the Department of Geology. London: Printed by order of the Trustees.

MLA Citation

British Museum (Natural History). Dept. of Geology, and Thomas Henry Withers. Catalogue of the Machaeridia (Turrilepas And Its Allies) In the Department of Geology. London: Printed by order of the Trustees, 1926.

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