00762nam0-22002771i-450-990000042050403321000004205FED01000004205(Aleph)000004205FED0100000420520011111d--------km-y0itay50------baitay-------001yyFrontier to spaceEric Burgesswith a foreword by the astronomer royal Harold Spencer Jones.LondonChapman & Hall1955XVI, 174 p.ill.22 cmAstronautica629.4Burgess,EricITUNINARICAUNIMARCBK99000004205040332113 F 12 1621306FINBCFINBCUNINAING01