omar, a. (1986). on the transportation problem with mixed constraints. the institute of national planning.
Cytowanie według stylu Chicago (wyd. 17)omar, amani. On the Transportation Problem with Mixed Constraints. cairo: the institute of national planning, 1986.
Cytowanie według stylu MLA (wyd. 9)omar, amani. On the Transportation Problem with Mixed Constraints. the institute of national planning, 1986.