Britton, John P. (2010), „Studies in Babylonian lunar theory: part III. The introduction of the uniform zodiac”, Archive for History of Exact Sciences, 64 (6): 617—663, JSTOR41134332, S2CID122004678, doi:10.1007/S00407-010-0064-Z, „[T]he zodiac was introduced between −408 and −397 and probably within a very few years of −400.”
Noble, William (1902), „Papers communicated to the Association. The Signs of the Zodiac.”, Journal of the British Astronomical Association, 12: 242—244, Bibcode:1902JBAA...12..242N
jstor.org
Britton, John P. (2010), „Studies in Babylonian lunar theory: part III. The introduction of the uniform zodiac”, Archive for History of Exact Sciences, 64 (6): 617—663, JSTOR41134332, S2CID122004678, doi:10.1007/S00407-010-0064-Z, „[T]he zodiac was introduced between −408 and −397 and probably within a very few years of −400.”
„zodiac”. Oxford Dictionaries. Oxford University Press. Архивирано из оригинала 26. 09. 2016. г. Приступљено 19. 9. 2017.CS1 одржавање: Формат датума (веза)
semanticscholar.org
api.semanticscholar.org
Britton, John P. (2010), „Studies in Babylonian lunar theory: part III. The introduction of the uniform zodiac”, Archive for History of Exact Sciences, 64 (6): 617—663, JSTOR41134332, S2CID122004678, doi:10.1007/S00407-010-0064-Z, „[T]he zodiac was introduced between −408 and −397 and probably within a very few years of −400.”
Једна или више претходних реченица укључује текст из публикације која је сада у јавном власништву: Clerke, Agnes Mary (1911). „Zodiac”. Ур.: Chisholm, Hugh. Encyclopædia Britannica (на језику: енглески). 28 (11 изд.). Cambridge University Press. стр. 997.