Martin, Alan. An introduction to radiation protection / Alan Martin and Samuel A. Harbisan. - 4th ed. / . - London : Chapman and Hall , 1996. - x,230p. : ills,charts ; 23cm . NULL ISBN: 0412631105 USD 17.99 Subjects--Index Terms: RADIATION RADIOACTIVITY IONIZING RADIATION Dewey Class. No.: 539.72 / MAR/I