What is "secondary sources"

Usage examples of "secondary sources".

There were fourteen terawatt generators that supplied power for the Net along with some relatively small secondary sources such as geothermal areas where the nannites bled off power to prevent eruptions and other disturbances.

My research involved a quantity of secondary sources ranging from biographies to treatises on ship construction by naval architects.

I'm pleased when I meet people who know any history at all, but I do wish that people who've read only secondary sources (or worse, have watched a TV show on the subject) would keep in mind that there's a lot beneath the surface of any major historical event.

Someone accustomed to making full use of a carcass, who would know not only how to dress the principal meat sections but the secondary sources of food, as well—.

None of the secondary sources actually showed the battle plots or ship courses&mdash.

None of the secondary sources actually showed the battle plots or ship courses—.

Now secondary sources of light were starting up, like flames ignited by flying sparks.

There are guides that give you hints about where to look, and sometimes you'll find references in secondary sources that look intriguing.

The reports were mostly secondary sources, panicked subspace frequency transmissions that sounded hysterical and incoherent .

I don't ordinarily mention secondary sources I've used in writing (and I use a lot of them), but Dr Andrea Berlin is still alive to thank.