TY - BOOK AU - Mason,Rita A. TI - A guide to dental radiography T2 - A Dental practitioner handbook ; no. 27 SN - 0723604789 : AV - RK309 .M3 1977 U1 - 617.6/07/57 PY - 1977/// CY - Bristol PB - J. Wright KW - Teeth KW - Radiography N1 - Includes index; Bibliography: p. 131 ER -