The Role of horticulture in human well-being and social development a national symposium, 19-21 April 1990, Arlington, Virginia / [electronic resource] : editor-in-chief, Diane Relf. - Portland, Or. : Timber Press, 1994. - 1 online resource. Includes bibliographical references and index. ISBN: 9780881922097 9780585335629 (electronic bk.) Subjects--Topical Terms: Horticulture--Congresses.Horticulture--Social aspects--Congresses.Gardening--Therapeutic use--Congresses. LC Class. No.: SB317.53 / .R65 1994