000			00371pam a2200133a 44500
082			_aNASA _bCR-308
100			_a
245	1		_aSTUDY OF HEAT SHIELDING REQUIREMENTS FOR MANNED MARS LANDING AND RETURN MISSIONS
260			_a _bNasa, Washington, D.C. _c
300			_a12
500			_aBound With Nasa Cr-301-307,310 Lack No.309
964			_gCIRC
997			_aTR12883 C
999			_c397043 _d397043