Aschheim, Kenneth W. Esthetic Dentistry A Clinical Approach toTechniques and Materials / Textual Documents - 2nd ed / . - Missouri : Mosby A Harcourt Health Science Company , 2001. - 606: 28*22. ISBN: 9714.60 (Hard Cover) Subjects--Index Terms: General Dentistry Dewey Class. No.: 617.6 / ASC