差分

* [[Cicero|* Cicero, Marcus Tullius]], ''[[De Natura Deorum]]'' in ''Cicero: On the Nature of the Gods. Academics'', translated by H. Rackham, [[Loeb Classical Library]] No. 268, Cambridge, Massachusetts, [[Harvard University Press]], first published 1933, revised 1951. {{ISBN|:978-0-674-99296-2}}. [https://www-loebclassics-com.wikipedialibrary.idm.oclc.org/view/LCL268/1933/volume.xml Online version at Harvard University Press]. [https://archive.org/stream/denaturadeorumac00ciceuoft#page/n5/mode/2up Internet Archive].* [[Hermann Alexander Diels|* Diels, Hermann A.]], ''Die Fragmente der Vorsokratiker'', Volume II, Berlin, Weidmann, 1912. [https://archive.org/details/diefragmenteder02diel/page/n3/mode/2up?view=theater Internet Archive].* [[* Diodorus Siculus]], ''Diodorus Siculus: The Library of History''. translated by C. H. Oldfather, twelve volumes, [[Loeb Classical Library]], Cambridge, Massachusetts: [[Harvard University Press]]; London: William Heinemann, Ltd. 1989. [https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Diodorus_Siculus/home.html Online version by Bill Thayer].* [[* Euripides]], ''[[Helen (play)|Helen]]'', translated by E. P. Coleridge in ''The Complete Greek Drama'', edited by Whitney J. Oates and Eugene O'Neill, Jr., Volume 2, New York, Random House, 1938. [http://data.perseus.org/citations/urn:cts:greekLit:tlg0006.tlg014.perseus-eng1:1-30 Online version at the Perseus Digital Library].