APA (7e ed.) Bronvermelding

Institute of National Planning. (1974). An Economic study of the Egyptian cement industry. Institute of National Planning.

Chicago (17e ed.) Bronvermelding

Institute of National Planning. An Economic Study of the Egyptian Cement Industry. Cairo: Institute of National Planning, 1974.

MLA (9e ed.) Bronvermelding

Institute of National Planning. An Economic Study of the Egyptian Cement Industry. Institute of National Planning, 1974.

Let op: Deze citaties zijn niet altijd 100% accuraat.