00319nam a22001217a 4500020001800000082001900018100001800037245005000055260004400105300001900149650001700168650001200185  a9788184572391  a387.8  bPER/T  aPercy K SIngh  aHandbook of space and tourism/cPercy K SIngh  aNew Delhi:bKanishka publishers,c2010.  a326p. ;b25cm.  aSpace Travel  aTourism