00382nam a2200121Ia 4500008004100000041000800041084001300049100002200062245006800084260004100152653005100193700001600244160808s1962    xx            000 0 eng d  aeng  aB9wN2CC  aPierce, Philip N.  aJohn H Glenn:bastronaut /cby Philip N. Pierce and Schuon Karl  aNew York :bBallantine Books,c1962.  aMathematical Astronomy Biograaphy John H Glenn  aSchuon Karl