Thygerson, Alton L. Essentials of safety - 3rd ed - Englewood Cliffs, N.J. Addison-Wesley 1986 - 99 p. 23 cm. 001824 S 068 ISBN: 0132878631 Subjects--Topical Terms: AccidentsSafety education--Prevention.--United States--United States Dewey Class. No.: 363.1 / E786