Online-Ressource
University Park, Pa. : Penn State Univ. Press
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University Park, Pa. : Walden
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Flushing, NY : Queens College Press
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Albany, NY : State Univ. of New York Press
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Kent, Ohio : Kent State Univ. Press
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University Park, Pa. : Pennsylvania State Univ.
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Lincoln, Neb. : Univ. of Nebraska Press
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Asland, Ohio : Purdue Univ. Press
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West Lafayette, Ind. : Purdue Univ. Press
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1.1975 - 5.1979; [N.S.] 1.1981 -