APA Style
Day, Richard D.. (2009).
Impact Issues 1 : 20 Keys Issue To Help You Express Yourself In English .
Hongkong:
Pearson Longman Asia ELT.
Chicago Style
Day, Richard D..
Impact Issues 1 : 20 Keys Issue To Help You Express Yourself In English.
Hongkong:
Pearson Longman Asia ELT,
2009.
Text.
MLA Style
Day, Richard D..
Impact Issues 1 : 20 Keys Issue To Help You Express Yourself In English.
Hongkong:
Pearson Longman Asia ELT,
2009.
Text.
Turabian Style
Day, Richard D..
Impact Issues 1 : 20 Keys Issue To Help You Express Yourself In English.
Hongkong:
Pearson Longman Asia ELT,
2009.
Print.