By Martin Gray,.... Éditions J'ai lu 1979 . 216 p. 17 cm. 2277118400

http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=9149 ISBN 2266133713 http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=9955

By Martin Gray. Pocket 2003 . 400 p. 18 cm. 2266133713

http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=9955 ISBN 2911456041 http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=19807

By Georges Osorio,.... A. Labussière 1997 . 559 p. 24 cm. 2911456041

http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=19807 ISBN 2268058107 http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=19952

By Martin Gray. Éd. du Rocher 2006 . 1 vol. (413 p.) , La couv. porte en plus : "découvrir et guider notre énergie psychique" 21 cm. 2268058107

http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=19952 ISBN http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=26904

By Martin Gray. Robert Laffont

http://bnfa.ch/cgi-bin/koha/opac-detail.pl?biblionumber=26904