Greenwall, , Bleaching Technigues in Restorative Dentistry an Iiiustrated Guide / Textual Documents - 1st ed / . - London : Martin Dunitz Ltd. , 2002. - 269: 25*19.5. ISBN: 6322.50 (Hard Cover) Subjects--Index Terms: Endodontics Dewey Class. No.: 617.634 2 / GRE