APA (7th ed.) Citation

Davies, P. H. J. (1996). The British secret services. International organizations series.

Chicago Style (17th ed.) Citation

Davies, Philip H. J. "The British Secret Services." International Organizations Series 1996.

MLA (9th ed.) Citation

Davies, Philip H. J. "The British Secret Services." International Organizations Series, 1996.

Warning: These citations may not always be 100% accurate.