Gustave Reininger

title	ISBN-13 (ISBN-10)	year of publica- tion	other author(s)
Centering Prayer in Daily Life and Ministry	978-0-8264-1041-2 (0-8264-1041-3)	1997	Thomas Keating O.C.S.O.
The Diversity of Centering Prayer	978-0-8264-1115-0 (0-8264-1115-0)	1999