APA (7th ed.) Citation

Marks, J. (2007). IELTS Resource Pack. Delta.

Chicago Style (17th ed.) Citation

Marks, Jon. IELTS Resource Pack. England: Delta, 2007.

MLA (9th ed.) Citation

Marks, Jon. IELTS Resource Pack. Delta, 2007.

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