APA Style

Day, Richard R. (2009). Impact Issues 1 (+CD) . Hongkong: Longman.

Chicago Style

Day, Richard R. Impact Issues 1 (+CD). Hongkong: Longman, 2009. Printed Book.

MLA Style

Day, Richard R. Impact Issues 1 (+CD). Hongkong: Longman, 2009. Printed Book.

Turabian Style

Day, Richard R. Impact Issues 1 (+CD). Hongkong: Longman, 2009. Printed Book.