Sentence examples for principal source from inspiring English sources

Oil is Germany's principal source of energy.

The principal source of his misery is his own side.

Bastnasite, a fluorocarbonate, is the principal source of rare earths.

(Its principal source of revenue has been books and other byproducts).

He is its principal source of inspiration and invention as well as its presiding genius".

The League Cup is fast becoming Crystal Palace's principal source of cheer.

The North Sea has been the principal source of airlift weather trouble.

He also wants Iraq to secure control of the principal source of Arab wealth: oil.

That won't pay their bills if it's their principal source of income.

But the principal source of threats against her life was linked to Agua Zarca.

Harris suggested that children's peers might be the principal source of this environmental input.