1948
Psychic protection
1997
Feeling safe
2002
Working with angels, fairies & nature spirits
1998
Personal identity, national identity, and international relations
1990
The New Age
1991
A Canterbury tale
1971
Money, heart and mind
1995
De andere wereld
2012
Softly, children, I'm coming
1970
Personal identity, national identity and international relations
1990
The power of the new spirituality
2012
The Penguin book of new age and holistic writing
2001
The endorphin effect
2011
Holistic revolution
2000
