APA Citation

HELGESEN, M. Workplace English (student book): Office file. [?]: Longman Pearson Education.

Chicago Style Citation

HELGESEN, Marc. Workplace English (student Book): Office File. [?]: Longman Pearson Education.

MLA Citation

HELGESEN, Marc. Workplace English (student Book): Office File. [?]: Longman Pearson Education.

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