APA (7th ed.) Citation

Hottinger, M. D., Ward, P. R., Κόλλας, Π., & Νικολόπουλος, Β. Brush up your English. J. M. Dent and Sons.

Chicago Style (17th ed.) Citation

Hottinger, Marie D., Phyllis R. Ward, Π Κόλλας, and Β Νικολόπουλος. Brush Up Your English. London: J. M. Dent and Sons.

MLA (8th ed.) Citation

Hottinger, Marie D., et al. Brush Up Your English. J. M. Dent and Sons.