Hubbard, L. Ron. <br/><br/>Horticulture for a greener world/ Ron L. Hubbard.  -- California, USA:  Bridge publications, Inc.,  2012. <br/>165 p.:  ill. ( some col ill.);  31 cm. <br/><br/> Includes appendices. <br/><br/><label>ISBN: </label>978-1-4031-9892-1 <br/><br/><label>Subjects--Topical Terms: </label><br/>Horticulture Experiments.<br/>Horticulture Research.<br/>Philosophy. <br/>Plants Experiments.<br/><br/><label>Dewey Class. No.: </label>GR 635 H8612 2012