* Fontenrose, Joseph Eddy, The Delphic oracle, its responses and operations, with a catalogue of responses, Berkeley: University of California Press, 1978.
* Fontenrose, Joseph Eddy, The Delphic oracle, its responses and operations, with a catalogue of responses, Berkeley: University of California Press, ISBN 0-520-03360-4 ( 1978 )
0.003 seconds.