Right Of Passage

Description for RIGHT OF PASSAGE by Alexei Panshin:

In 2198, 150 years after the desperate wars that destroyed an overpopulated Earth, Man lives precariously on 100 hastily-established colony worlds and in the 7 giant Ships that once ferried men to the stars. Mia Havero's Ship is a small closed society. It tests its children by casting them out to live or die in a month of Trial in the hostile wilds of a colony world. Mia Havero's Trial is fast approaching, and in the meantime she must learn not only the skills that will keep her alive, but the deeper courage to face herself and her world.