Garland, H. K. Understanding greenhouse & ozone / H.K. Garland. - Dora Creek, N.S.W. : Palms Press, 1989. - 60 p. : ill. ; 20 cm. ISBN: 0959304134 (pbk.) LCCN: 90013181 Subjects--Topical Terms: Greenhouse effect, Atmospheric.Atmospheric ozone--Reduction.Air--Pollution