Smith's Bible Dictionary - Assyria or Asshur
Smith's Bible Dictionary - Nineveh
Smith's Bible Dictionary - Calah
Smith's Bible Dictionary - Shalmaneser
Smith's Bible Dictionary - Tiglathpileser
Smith's Bible Dictionary - Sargon
Smith's Bible Dictionary - Sennacherib
Smith's Bible Dictionary - Esarhaddon
International Standard Bible Encyclopedia - Asshur
International Standard Bible Encyclopedia - Nineveh
International Standard Bible Encyclopedia - Calah
1911 Encyclopedia Britannica - Sir Austen Henry Layard