* Fontenrose, Joseph Eddy, Python ; a study of Delphic myth and its origins, New York, Biblio & Tannen, 1974.
* Fontenrose, Joseph Eddy, Python ; a study of Delphic myth and its origins, New York, Biblio & Tannen, ISBN 0-8196-0285-X ( 1959 ; 1974 )
* Fontenrose, Joseph Eddy, Python ; a study of Delphic myth and its origins, 1959.
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