Kopple, K. D. (1966). Peptides and amino acids. W. A. Benjamin.
Chicago-čujuhus (17. p.)Kopple, Kenneth D. Peptides and Amino Acids. New York, USA: W. A. Benjamin, 1966.
MLA-čujuhus (9. p.)Kopple, Kenneth D. Peptides and Amino Acids. W. A. Benjamin, 1966.
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