APA-ийн эшлэл(7 дахь хэвлэлт)

Mettwally , A. E. O. (1970). Regional Aspects of the U.A.R's Economic Development: Thesis of PhD. Netherlands School of Economics.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Mettwally , Abo-Bakr E. O. Regional Aspects of the U.A.R's Economic Development: Thesis of PhD. Rotterdam: Netherlands School of Economics, 1970.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Mettwally , Abo-Bakr E. O. Regional Aspects of the U.A.R's Economic Development: Thesis of PhD. Netherlands School of Economics, 1970.