Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.