00418nam a22001337a 4500008004100000040005500041080001600096100002200112245004000134260006900174300001500243650001200258653001400270230612b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a629.78 bK9  aGrodzovskii, G L   aMechanics of spaceflight low thrust  aJerusalem:  bIsrael Program for Scientific Translations, c1969  axvi, 562p.  aScience  aAstronomy