APA (7th ed.) Citation

JONES, A., Hosker, I., & Burgen, A. (1980). Focal English. Stanley Thomas Pub.

Chicago Style (17th ed.) Citation

JONES, Alwyn, Ian Hosker, and Andrew Burgen. Focal English. Cheltenham: Stanley Thomas Pub, 1980.

MLA (8th ed.) Citation

JONES, Alwyn, et al. Focal English. Stanley Thomas Pub, 1980.