Grey , E. C. (1925). Practical chemistry by micro-methods. W. Heffer.
Chicago-čujuhus (17. p.)Grey , Egerton Charles. Practical Chemistry by Micro-methods. Cambridge: W. Heffer, 1925.
MLA-čujuhus (9. p.)Grey , Egerton Charles. Practical Chemistry by Micro-methods. W. Heffer, 1925.
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