APA-čujuhus (7. p.)
Davis, P. W., & Pearl Salomon, E. (1974). The world of biology: Life, society, ecosphere. McGraw-Hill.
Chicago-čujuhus (17. p.)
Davis, P. William, juo Eldra Pearl Salomon. The World of Biology: Life, Society, Ecosphere. New York: McGraw-Hill, 1974.
MLA-čujuhus (9. p.)
Davis, P. William, juo Eldra Pearl Salomon. The World of Biology: Life, Society, Ecosphere. McGraw-Hill, 1974.
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