APA aipamena

(2003). Macmillan. Macmillan/McGraw-Hill School.

Chicago Style aipamena

Macmillan. Macmillan/McGraw-Hill School, 2003.

MLA aipamena

Macmillan. Macmillan/McGraw-Hill School, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.