APA (7th ed.) Citation

Hartog, Y. C., Dillen, Y. v., Stapper, Y. A. M., & Jaarsma, F. (1991). Everyday English. East-West Communication Group.

Chicago Style (17th ed.) Citation

Hartog, Y. C., Y. van Dillen, Y. A. M. Stapper, and F. Jaarsma. Everyday English. [Amsterdam]: East-West Communication Group, 1991.

MLA (9th ed.) Citation

Hartog, Y. C., et al. Everyday English. East-West Communication Group, 1991.