APA (7th ed.) Citation

(2017). IELTS advantage writing skills. Delta Publishing.

Chicago Style (17th ed.) Citation

IELTS Advantage Writing Skills. Peaslake, England: Delta Publishing, 2017.

MLA (9th ed.) Citation

IELTS Advantage Writing Skills. Delta Publishing, 2017.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.