Knamiller, G., & Smyth, J. (1987). The environmental science and technology education. Pergamon.
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Chicago-čujuhus (17. p.)
Knamiller, G.W, juo J.C Smyth. The Environmental Science and Technology Education. Oxford: Pergamon, 1987.
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MLA-čujuhus (9. p.)
Knamiller, G.W, juo J.C Smyth. The Environmental Science and Technology Education. Pergamon, 1987.
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