APA-ийн эшлэл(7 дахь хэвлэлт)

Borjas, G. J. (1999). Heaven's door: Immigration policy and the American economy. Princeton University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Borjas, George J. Heaven's Door: Immigration Policy and the American Economy. Princeton, N.J.: Princeton University Press, 1999.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Borjas, George J. Heaven's Door: Immigration Policy and the American Economy. Princeton University Press, 1999.