They are without material sources; they will never develop the higher skills.
Material sources are much more limited and are, for the most part, restricted to western Iran.
The production site, therefore, will be located near the raw material sources.
The variable locations of lithic raw material sources also affect sedentary societies, influencing the economic role of these materials and the administration of the raw material sources.
If you create something that seems as if it proceeded seamlessly from your pen, then you hide the material sources of your work".
Corncobs, oat hulls, cottonseed hulls, rice hulls, and bagasse are the major raw material sources, the annual replenishment of which ensures a continuing supply.
BP is ramping up its gas activities.There are two-and-a-half material sources if you are serious about reducing carbon emissions.
Earth, lunar, and asteroidal material sources are compared to determine the costs of the particle ring and the spacecraft ring.
The films were deposited by using CH4, N2, and additional solid Si columns as raw material sources.
Decellularization methods, which use preexisting tissues as material sources, have also been used to manufacture larynx scaffolds with promising results.
There is a strong correspondence between Acheulean sites and fine-grained andesite dykes, which were major lithic raw material sources.
