00527nam 2200181z- 450 99632018180331620160818152754.0(CKB)3830000000000353(EXLCZ)99383000000000035320151026cuuuuuuuu -u- -engHistorical Analogs for the Stimulation of Space CommerceNASARoger D. Launius875797BOOK996320181803316Historical Analogs for the Stimulation of Space Commerce2302277UNISA