Shein, Christopher. The vegetable gardener's guide to permaculture : creating an edible ecosystem / - 1st ed. - Portland, Or. : Timber Press, c 2013. - 272 p. : col. ill. ; 26 cm. ISBN: 9781604692709 1604692707 Subjects--Topical Terms: Permaculture.Vegetable gardening.Food crops. Dewey Class. No.: 631TIM 2013 C146 Or.