APA (7th ed.) Citation

Williams, A. (2012). Vocabulary for IELTS. Collins.

Chicago Style (17th ed.) Citation

Williams, Anneli. Vocabulary for IELTS. London, UK: Collins, 2012.

MLA (9th ed.) Citation

Williams, Anneli. Vocabulary for IELTS. Collins, 2012.

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