00850nam a2200241 a 450000100060000000300080000600500170001400800410003103500190007204000260009104100080011708200220012510000520014724500690019925000420026826000390031030000350034950000200038465000240040494200120042899900170044095201510045765916BD-RjUL20211209081500.0170313s1955    enka          001 0 eng    a(BD-RjUL)66046  aDLCcFOdBD-RjULbeng  aeng  a608223bCRD 19551 aCrowther, J. G.q(James Gerald),d1899-919492310aDiscoveries and inventions of the 20th century /cJ. G. Crowther  a4th ed., entirely rev. and rewritten.  aLondon :bRoutledge & Paul,c1955.  axvii, 432 p. :bill. ;c23 cm.  aIncludes index  0aInventions.9194924  2ddccBK  c65916d65916  00102ddc40718NFICaRUCLbRUCLcReadingd1955-09-12eB.H. Black well englandg105.00l0o608 CRD 1955r2017-03-13 00:00:00tC-1w2017-03-13yBK