APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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-referens (9:e uppl.)

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

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