APA (7th ed.) Citation

Great Britain. Post Office. Post Office telecommunications journal. Post Office of the United Kingdom.

Chicago Style (17th ed.) Citation

Great Britain. Post Office. Post Office Telecommunications Journal. London: Post Office of the United Kingdom.

MLA (9th ed.) Citation

Great Britain. Post Office. Post Office Telecommunications Journal. Post Office of the United Kingdom.

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