Chicken Tractor : The Permaculture Guide to Happy Hens and Healthy Soil Andy Lee, Pat Foreman / Paperback / Published 1998 Earth User's Guide to Permaculture Rosemary Morrow, Rob Allsop (Illustrator) / Paperback / Published 1994 Earthuser's Guide to Permaculture : Teacher's Notes Rosemary Morrow / Paperback / Published 1997 Forest Gardening : Cultivating an Edible Landscape Robert A. De J. Hart / Paperback / Published 1996 Introduction to Permaculture Bill Mollison, Slay Reney-Mia / Paperback / Published 1991 Introduction to Permaculture Bill Mollison, Reny Mia Slay / Paperback / Published 1997 Permaculture : A Designers Manual Bill Mollison / Hardcover / Published 1997 The Permaculture Book of Ferment & Human Nutrition Bill Mollison / Paperback / Published 1997 Permaculture in a Nutshell Patrick Whitefield / Paperback / Published 1993