00969nam a2200289 i 450099100125245970753620020507113444.0970308s1970 us ||| | eng b10194782-39ule_instLE00644685ExLDip.to Fisicaita52.9.5500.5QB500McDonald, Robert L.463977Space science /Robert L. McDonald and Walter H. HesseColumbus :Charles E. Merrill Publ. Co.,1970iv, 154 p. :ill. ;23 cm.Merrill physical sciences seriesSpace sciencesHess, Walter H..b1019478217-02-1727-06-02991001252459707536LE006 52.9.5 MCD12006000026253le006-E0.00-l- 00000.i1024046927-06-02Space science191312UNISALENTOle00601-01-97ma -engus 01