Barker, R. (1971). Organic chemistry of biological compounds. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Barker, Robert. Organic Chemistry of Biological Compounds. Englewood cliffs, New york: Prentice-Hall, 1971.
Lua MLA (9ú heag.)Barker, Robert. Organic Chemistry of Biological Compounds. Prentice-Hall, 1971.
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