BUTTLE, J. (1981). Chemistry, a unified approach. Butterworths.
Chicago-čujuhus (17. p.)BUTTLE, J.W. Chemistry, a Unified Approach. London: Butterworths, 1981.
MLA-čujuhus (9. p.)BUTTLE, J.W. Chemistry, a Unified Approach. Butterworths, 1981.
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