- Author: Ninian Smart
- Language: English
- Year: 1996
- Author: Ninian Smart
- Language: English
- Year: 2015
- Author: Gerardus Van der Leeuw, Ninian Smart, John Evan Turner
- Language: English
- Year: 2014
- Author: Ninian Smart, Swami Purnananda
- Language: English
- Year: 2017
- Author: Ninian Smart
- Language: English
- Year: 2015
- Author: Ninian Smart, Oliver Leaman
- Language: English
- Year: 2008
- Author: Alan Ross Anderson, A. M. Turing, Michael Scriven, J. R. Lucas, Keith Gunderson, Hilary Putnam, Paul Ziff, J. J. C. Smart, Ninian Smart
- Language: Spanish
- Author: Ninian Smart, Shivesh Chandra Thakur
- Language: English
- Year: 1993
- Author: Alan Ross Anderson, A.M. Turing, Michael Scriven, J. R. Lucas, Keith Gunderson, Hilary Putnam, Paul Ziff, J. J. C. Smart, Ninian Smart
- Language: Spanish
- Year: 1984
- Author: Ninian Smart John Clayton Steven Katz Patrick Sherry (eds.)
- Language: English
- Year: 1985