APA (7e ed.) Bronvermelding

Swan, M., & Walter, C. How english works: A grammar practice book with answers.

Chicago (17e ed.) Bronvermelding

Swan, Michael, en Catherine Walter. How English Works: A Grammar Practice Book with Answers.

MLA (8e ed.) Bronvermelding

Swan, Michael, en Catherine Walter. How English Works: A Grammar Practice Book with Answers.

Let op: Deze citaties zijn niet altijd 100% accuraat.