APA-ийн эшлэл(7 дахь хэвлэлт)

Xerri, D. (2010). Seamus Heaney's early work: Poetic responsibility and the troubles. Maunsel & Co..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Xerri, Daniel. Seamus Heaney's Early Work: Poetic Responsibility and the Troubles. Bethesda, MD: Maunsel & Co., 2010.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Xerri, Daniel. Seamus Heaney's Early Work: Poetic Responsibility and the Troubles. Maunsel & Co., 2010.