APA (7th ed.) Citation

Earle, J. B. F. (1971). A century of road materials: The history of the Roadstone Division of Tarmac Ltd. Blackwell.

Chicago Style (17th ed.) Citation

Earle, James Basil Foster. A Century of Road Materials: The History of the Roadstone Division of Tarmac Ltd. Oxford: Blackwell, 1971.

MLA (8th ed.) Citation

Earle, James Basil Foster. A Century of Road Materials: The History of the Roadstone Division of Tarmac Ltd. Blackwell, 1971.