These names are not found, however, in classical geographic sources.

Exactly when it was finally completed is not known as the classical sources disagree.

Use a prayer or description from a classical source, when you are in a quiet place.

This myth and its variations are not found in classical sources.

The Arabs added a great deal of knowledge to expand and correct the classical sources.

Only in the 17th century did people start to notice his reliance on earlier, mainly classical sources.

There are several references to them in Classical sources.

The web of connectivity to classical sources in this series is extensive.

No other physical descriptions of the Hyperboreans are provided in classical sources.

The classical sources seem determined that they were to be called Ionians along with other names even then.