APA (7th ed.) Citation

National Book League (Great Britain), Brown, M., Emmett, I., & Forbes, D. (1977). British book design and production. N.B.L.

Chicago Style (17th ed.) Citation

National Book League (Great Britain), Michael Brown, Ian Emmett, and Dennis Forbes. British Book Design and Production. London: N.B.L, 1977.

MLA (8th ed.) Citation

National Book League (Great Britain), et al. British Book Design and Production. N.B.L, 1977.