Heron Books

year of pub­li­ca­ti­onISBNauthor(s)title
1978978-0-89739-000-2Lance J. KlassLeipzig Connection
1993978-0-89739-001-9Paolo LioniThe Leipzig Connection (Basics in Education)
1981978-0-89739-003-3L. Ron HubbardThe Second Dynamic: Introduction to Scientology Ethics
1983978-0-89739-004-0L. Ron HubbardThe learning book
2005978-0-89739-013-2Delphi Schools Inc.The Heron Derivation Dictionary