text Philadelphia Lea and Febiger 1989 6th ed. eng xiii, 802 hlm. : il 28 cm. Esther M. Wilkins dental - hygienists 617.601 617.601 Wil c 1 0812111818 INLIS000000000044242 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)