APA-ийн эшлэл(7 дахь хэвлэлт)

Lloyd, S. (1961). Twin rivers: A brief history of Iraq from the earliest times to The present day. Oxford.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Lloyd, Seton. Twin Rivers: A Brief History of Iraq from the Earliest Times to The Present Day. Bombay: Oxford, 1961.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Lloyd, Seton. Twin Rivers: A Brief History of Iraq from the Earliest Times to The Present Day. Oxford, 1961.