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by Mazur, Glen A.; Proctor, Thomas E.
by Anderson, Laurie Halse
by Parkinson, C.N.
by Murray, Chris
by Giel, Volker; Oellers, Norbert
by Barker, Eugene Campbell
by Anderson, Laurie Halse; Earley, Lori
by Lewis, Michael
by Hamilton, Alexander
by Clark, James