Willard, H. H. (1986). Instrumental methods of chemical analysis (7th.). CBS Publisher, New Delhi.
Chicago-čujuhus (17. p.)Willard, Hobart H. Instrumental Methods of Chemical Analysis. 7th. CBS Publisher, New Delhi, 1986.
MLA-čujuhus (9. p.)Willard, Hobart H. Instrumental Methods of Chemical Analysis. 7th. CBS Publisher, New Delhi, 1986.
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