629.13 A Armstrong, Harry George, 1899 - Principles and practice of aviation medicine. 2d ed. Barltimere, The William & Wilkins company, 1943. xiv, 314 p. illus. tables. diagrs. 23 cm <a id= "rdfa" about="http://bnjm.sld.cu/cgi-bin/item.py?idficha=bcuhcgrlyfof0060153" property = "oa:link" href="http://www.worldcat.org/oclc/ 707031703 ">WorldCat</a>