APA (7th ed.) Citation

Brieger, N., & Pohl, A. (2012). Technical english: Vocabulary and grammar. National Geographic Learning.

Chicago Style (17th ed.) Citation

Brieger, Nick, and Alison Pohl. Technical English: Vocabulary and Grammar. Andover, Reino Unido: National Geographic Learning, 2012.

MLA (9th ed.) Citation

Brieger, Nick, and Alison Pohl. Technical English: Vocabulary and Grammar. National Geographic Learning, 2012.