APA
(2001). A COMPREHENSIVE GUIDE TO ANGEL THERAPY. LEICESTER: SILVERDALE BOOKS.
Chicago
2001. A COMPREHENSIVE GUIDE TO ANGEL THERAPY. LEICESTER: SILVERDALE BOOKS.
Harvard
(2001). A COMPREHENSIVE GUIDE TO ANGEL THERAPY. LEICESTER: SILVERDALE BOOKS.
MLA
A COMPREHENSIVE GUIDE TO ANGEL THERAPY. LEICESTER: SILVERDALE BOOKS. 2001.