APA (7th ed.) Citation

British Museum. Department of Printed Books. (1968). General catalogue of printed books.: Ten-year supplement, 1956-1965. Trustees of the British Museum.

Chicago Style (17th ed.) Citation

British Museum. Department of Printed Books. General Catalogue of Printed Books.: Ten-year Supplement, 1956-1965. London: Trustees of the British Museum, 1968.

MLA (9th ed.) Citation

British Museum. Department of Printed Books. General Catalogue of Printed Books.: Ten-year Supplement, 1956-1965. Trustees of the British Museum, 1968.