ARMSTRONG, HARRY G. text Baltimore The Williams and Wilkins 1939 eng xii, 496 p. : ill. ; 23 cm. ills.Frontispiece Harry G. Armstrong Incl. Bibl.--Index : 491-496 MEDICAL SCIENCES AIR TRANSPORT 614.8 614.8 ARM p 230408 20230408080817 INLIS000000000022955 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)