APA (7th ed.) Citation

Muir, D. N. (2007). A timeless classic: The evolution of Machin's icon. British Postal Museum & Archive.

Chicago Style (17th ed.) Citation

Muir, Douglas N. A Timeless Classic: The Evolution of Machin's Icon. London: British Postal Museum & Archive, 2007.

MLA (9th ed.) Citation

Muir, Douglas N. A Timeless Classic: The Evolution of Machin's Icon. British Postal Museum & Archive, 2007.