00404nam a22001457a 4500003000800000005001700008008004100025040001200066082001500078110002400093245004200117260004900159300002500208650002500233BD-DhUL20170109113602.0170109s1955    -us||||| |||| 00| 0 eng d  cBD-DhUL  a025.4bLIC2 aLibrary of Congress  aClassification /cLibrary of congress  aWashington :bU. S. Govt. print. off,c1955.  av, 256 p. ;c26 cm.  0aClassification-Books