000 00635 a2200265 4500
001 138055
020 _a0-85520-078-21
041 _aeng
080 _a5/6.001.5:338 Joh
245 _aEconomics of invention and innovation : with a case study of the development of the Hovercraft
250 _a
260 _aLondon
260 _bMartin Robertson,
260 _c1975
300 _axi,329 p.
300 _c22 cm
490 _a
100 _aJohnson, P.S.
700 _a
650 _a
650 _aTechnological innovations-Economic aspects
650 _aGround effect machines-Case studies
942 _cBK
942 _2UDC
999 _c63238
_d63238