APA (7th ed.) Citation

Hempstead, C. A. (2002). Radio and Television Regulation (Book). British Journal for the History of Science, 35(2), 238.

Chicago Style (17th ed.) Citation

Hempstead, Colin A. "Radio and Television Regulation (Book)." British Journal for the History of Science 35, no. 2 (2002): 238.

MLA (9th ed.) Citation

Hempstead, Colin A. "Radio and Television Regulation (Book)." British Journal for the History of Science, vol. 35, no. 2, 2002, p. 238.