APA (7th ed.) Citation

Kolev, R. K. (2013). The Babylonian Astrolabe. The Calendar of Creation.

Chicago Style (17th ed.) Citation

Kolev, Rumen K. The Babylonian Astrolabe. The Calendar of Creation. Helsinki, 2013.

MLA (8th ed.) Citation

Kolev, Rumen K. The Babylonian Astrolabe. The Calendar of Creation. 2013.

Warning: These citations may not always be 100% accurate.