Sentence examples for been a principal source from inspiring English sources

Students have always been a principal source of seasonal vineyard workers.

The shield contains a large variety of minerals (e.g., copper, silver, and gold), and its exploitation has been a principal source of Canada's wealth.

"Owning a home in this country has been a principal source of wealth creation for low- and moderate-income people," said Nicolas P. Retsinas, director of the Joint Center for Housing Studies at Harvard University.

Yet at least since the cities of ancient Sumeria went to war over control of their rivers — long before tales of Moses parting the Red Sea or the Flood described in the Bible — water has been a principal source of conflict.

Her book, "The Secret Club that Runs the World", starts with a "cast of characters" including the well known Mick Davis of Xstrata and his nemesis, Ivan Glasenberg of Glencore and others less famous, such as Pierre Andurand of BlueGold Capital Management, who appears to have been a principal source for the book.

For centuries botanicals have been a principal source of insecticides and insecticidal prototypes for structural optimization.

Fujian province is a principal source of the overseas Chinese population.

Archaeological investigations are a principal source of knowledge of prehistoric, ancient, and extinct culture.

Nevertheless, this is a principal source of the tension in interactions between the police and black men like me.

These one-unit changes are known as single nucleotide polymorphisms, or SNP's, and are a principal source of human genetic variation.

Mr. Lehmann-Haupt was a principal source for Tom Wolfe during his research for his best-selling book "The Electric Kool-Aid Acid Test," published in 1968.