APA (7th ed.) Citation

Allsop, F. J., Hunt, O. W., & Small, K. (1973). English today. John Wiley.

Chicago Style (17th ed.) Citation

Allsop, Francis Joseph, Orlando William Hunt, and K.J Small. English Today. Sydney: John Wiley, 1973.

MLA (9th ed.) Citation

Allsop, Francis Joseph, et al. English Today. John Wiley, 1973.