Graves, N. J. (1987). Land, water, and mineral resources in science education. Published for the ICSU Press by Pergamon Press.
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Chicago-čujuhus (17. p.)
Graves, Norman John. Land, Water, and Mineral Resources in Science Education. Oxford ; New York: Published for the ICSU Press by Pergamon Press, 1987.
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MLA-čujuhus (9. p.)
Graves, Norman John. Land, Water, and Mineral Resources in Science Education. Published for the ICSU Press by Pergamon Press, 1987.
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