00351nam a2200121Ia 450000500170000000800410001708200120005810000160007024500740008626000400016030000090020065000200020920240821151504.0240821s9999||||xx |||||||||||||| ||und||  a613 BAU  aBauer, W.W. 0aGuidebook for being six book I in the basic health and safety program  aChicagobScott FOresman & Co.c1957  a128p  aMedical Science