But the town is still dominated by its productive rural areas.

Arguably, the most productive area of research into higher education over the past 20 years is that concerned with student learning.

It had only to up anchors and move to potentially more productive areas.

But the most of them, coming to rest in less productive areas, simply squatted down and waited.

This is one of most agriculturally productive areas in the country.

This, he says, will increase investment in the more productive areas.

The town is situated in a highly productive agricultural area.

Total productive area of the oil field is approximately one square mile.

Here at the bottom of a dying world was the only naturally productive area upon its surface.

Total productive area of the oil field is 8,970 acres.