Книга |ссылка=https://books.google.com/books?id=aJgp94zNwNQC&printsec=frontcover#PPA11 |автор=McClellan |заглавие=Science and Technology in World History: An Introduction |год=2006 |язык=en |место=Baltimore, Maryland |издательство Нп3|Johns Hopkins University Press|JHU Press|en|Johns Hopkins University Press}} |isbn=0801883601}} Page 11
Jacques Waardenburg, Reflections on the Study of Religionp.221
Книга |ссылка=https://books.google.com/books?id=aJgp94zNwNQC&printsec=frontcover#PPA11 |автор=McClellan |заглавие=Science and Technology in World History: An Introduction |год=2006 |язык=en |место=Baltimore, Maryland |издательство Нп3|Johns Hopkins University Press|JHU Press|en|Johns Hopkins University Press}} |isbn=0801883601}} Page 11
World’s Oldest Ritual Discovered — Worshipped The Python 70,000 Years Ago
The Research Council of Norway (2006, November 30). World’s Oldest Ritual Discovered — Worshipped The Python 70,000 Years Ago. ScienceDaily. Retrieved March 2, 2008, from http://www.sciencedaily.com/releases/2006/11/061130081347.htm