Mahmoud, M. W. (1968). Analytical Study for Expenditure on Food in the Private Sector. The Institute of National Planning.
Cytowanie według stylu Chicago (wyd. 17)Mahmoud, M. W. Analytical Study for Expenditure on Food in the Private Sector. Cairo: The Institute of National Planning, 1968.
Cytowanie według stylu MLA (wyd. 9)Mahmoud, M. W. Analytical Study for Expenditure on Food in the Private Sector. The Institute of National Planning, 1968.