APA (7e ed.) Bronvermelding

omar, a. (1970). on the maintance of a system of machines by one repairman. the institute of national planning.

Chicago (17e ed.) Bronvermelding

omar, ahmed. On the Maintance of a System of Machines by One Repairman. cairo: the institute of national planning, 1970.

MLA (9e ed.) Bronvermelding

omar, ahmed. On the Maintance of a System of Machines by One Repairman. the institute of national planning, 1970.

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