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by Contreras, Alan L.
by Pessoa, Fernando; Reece, Byron Herbert; Contreras, Alan
by Contreras, Alan L.; Thompson, Sharyl J.; Poulin, Russell; et al.
by Moll, Ernest G.; Belser, Karl J.; Contreras, Alan
by Contreras, Alan
by Contreras, Alan L.; Le Guin, Ursula K.; Kittredge, William
by Hedges, Ada Hastings; Contreras, Alan L.; Hardt, Ulrich H.; et al.
by Contreras, Alan L.; Wood, Charles E. S.