Sentence examples for is an indispensable source from inspiring English sources

The Tone River is an indispensable source of water for irrigation throughout its populous drainage basin.

— Paul, New Jersey A. The Times is an indispensable source of quality information.

This collection is an indispensable source of information for researchers in biochemistry, biotechnology, organic and analytical chemistry, and food sciences.

Accounting for almost 40 percent of the world's vegetable oils, it is an indispensable source of vitamins and calories.

Testing the vibration behaviour of present vehicles is an indispensable source of knowledge for further improvement of vehicle dynamics.

The corpus of Old English verse is an indispensable source for scholars of the Indo-European tradition, early Germanic culture and English literary history.

In any company, in-house documents are an indispensable source of information for production.

Procopius, (born probably between 490 and 507, Caesarea, Palestine [now in Israel]), Byzantine historian whose works are an indispensable source for his period and contain much geographical information.

He said the new products would attract readers by being "an indispensable source of news on US politics and the economy", as well as through its business coverage.

The presidential historian Robert Dallek, who drew heavily on the Kissinger materials for his 2007 book, "Nixon and Kissinger: Partners in Power," said the tapes made by Presidents John F. Kennedy, Johnson and Nixon had been an indispensable source for historians.

Instead his contemporaneous typewritten journals have now been published, abridged but not expurgated.Though an imperfect substitute for a reflective integrated work, the "Journals" are an indispensable source for historians and irresistibly readable.