APA aipamena

McCarter, S., Easton, J., & Ash, J. (2014). A book for IELTS. IntelliGene.

Chicago Style aipamena

McCarter, Sam, Julie Easton, và Judith Ash. A Book for IELTS. IntelliGene, 2014.

MLA aipamena

McCarter, Sam, Julie Easton, và Judith Ash. A Book for IELTS. IntelliGene, 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.