Gordon, T., & Sands, J. G. (1976). P.E.T. in action. Bantam Books.
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Tohutoru Kātū Chicago (17th ed.)
Gordon, Thomas, me Juduth Gordon Sands. P.E.T. in Action. Toronto: Bantam Books, 1976.
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Tohutoro MLA (9th ed.)
Gordon, Thomas, me Juduth Gordon Sands. P.E.T. in Action. Bantam Books, 1976.
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