Null, Gary. Clearer, cleaner, safer, greener : a blueprint for detoxifying yo ur environment / Gary Null. - 1st ed. - New York : Villard Books, 1990. - xxvi, 293 p. ; 25 cm. Includes bibliographical references (p. 285-289) and index. ISBN: 0394583167 LCCN: 89-043467 Subjects--Topical Terms: Environmental health-- Popular works. Dewey Class. No.: 613.1