TY - BOOK AU - Sloop, John L. CN - TL785 CN - TL785 CY - Washington : DA - 1978. ID - 10203 KW - Rockets (Aeronautics) KW - Hydrogen as fuel. PB - Scientific and Technical Information Office, National Aeronautics and Space Administration, PP - Washington : PY - 1978. T1 - Liquid hydrogen as a propulsion fuel, 1945-1959 / TI - Liquid hydrogen as a propulsion fuel, 1945-1959 / ER -