Alexandra David-Neel and the Tulpas of Tibet (sources)
- PRIMARY SOURCE: Magic and Mystery in Tibet, by Alexandra David-Néel, 2012/1971 New York, USA [originally published in French in 1929]. ISBN: 0-486-22682-4. Pgs. 121, 307-315. Online at [preview 1]: https://books.google.com/books?id=DaJIpwIaqPAC&printsec=frontcover&dq=inauthor:%22Madame+Alexandra+David-Neel%22&hl=en&sa=X&ved=0ahUKEwju_u_q9I3SAhVL0FQKHeLjBiUQ6AEIHDAA#v=onepage&q=tulpa&f=false - [and preview 2]: https://books.google.com/books?id=0ovSTtvk-osC&printsec=frontcover&dq=%22Magic+and+Mystery+in+Tibet%22&hl=en&sa=X&ved=0ahUKEwiGz-7u-43SAhXpylQKHU-4AOEQ6AEIIjAB#v=onepage&q=tulpa&f=false
- A Tibetan-English Dictionary, by H.A. Jäschke, 1881 London, England. Pgs. 97, 232, 318, 336. Online at: https://books.google.com/books?id=SLUIAAAAQAAJ&pg=PA336&dq=sprulpa&hl=en&sa=X&ved=0ahUKEwj0qP3ZoI7SAhWIiFQKHRSJDloQ6AEIJDAC#v=snippet&q=%22sprul%20pa%22&f=false
- The Secret Doctrine, Vol. III, by Helena Petrovna Blavatsky, 1897 [reprinted 1910]. Pg. 387. Online at: https://books.google.com/books?id=JQAMAAAAIAAJ&pg=PA387&dq=tulpa&hl=en&sa=X&ei=seaNVPyJPJS1oQTItYLABA&ved=0CCMQ6AEwAQ#v=onepage&q=tulpa&f=false
- The Astral Plane: Its Scenery, Inhabitants, and Phenomena, by Charles Webster Leadbeater, 1895 London, England. Pgs. 82-83. Online at: https://books.google.com/books?id=zpsNAAAAYAAJ&pg=PA83&dq=thought+forms&hl=en&sa=X&ved=0ahUKEwjH8_yChZ3SAhVqjlQKHav7CJAQ6AEINzAG#v=onepage&q=thought%20forms&f=false
