APA

Dellar H., Walkley A., . (2010). Outcomes. Intermediate. Andover: Heinle Cengage Learning.

Chicago

Dellar H, Walkley A, . 2010. Outcomes. Intermediate. Andover: Heinle Cengage Learning.

Harvard

Dellar H., Walkley A., . (2010). Outcomes. Intermediate. Andover: Heinle Cengage Learning.

MLA

Dellar H, Walkley A, . Outcomes. Intermediate. Andover: Heinle Cengage Learning. 2010.