APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (8th ed.) Atıf

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