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Engineered organisms in the environment : scientific issues : proceedings of a cross-disciplinary symposium, held in Philadelphia, Pennsylvania 10-13 June 1985 / editors, Harlyn O. Halvorson, David Pramer, Marvin Rogul.

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Engineered organisms in the environment : scientific issues : proceedings of a cross-disciplinary symposium, held in Philadelphia, Pennsylvania 10-13 June 1985 / editors, Harlyn O. Halvorson, David Pramer, Marvin Rogul.