000			00442pam a2200145a 44500
082			_aNASA _bCR-1010
100			_aTownsend,G E,Grier,D R
245	1		_aGUIDANCE,FLIGHT MECCHANICS AND TRAJECTORY OPTIMIZATION _bVOLUME XI-GUIDANCE EQUATIONS FOR ORBITAL OPERATIONS
260			_a _bNasa, Washington, D.C. _c1968
300			_a115
500			_aBound With Nasa Cr-1006-1009
700			_aBlackford,A L
964			_gCIRC
997			_aTR12941 C
999			_c397983 _d397983