APA (7th ed.) Citation

Helgesen M. Marc & Adams K. Keith. (2000). Workplace English: Travel File: Student Book. Longman, 2000.

Chicago Style (17th ed.) Citation

Helgesen M. Marc and Adams K. Keith. Workplace English: Travel File: Student Book. Longman, 2000, 2000.

MLA (9th ed.) Citation

Helgesen M. Marc and Adams K. Keith. Workplace English: Travel File: Student Book. Longman, 2000, 2000.

Warning: These citations may not always be 100% accurate.