APA-čujuhus (7. p.)
Lucretius Carus, T., & Leonard, W. E. (2001). On the nature of things. Virginia Tech.
Chicago-čujuhus (17. p.)
Lucretius Carus, Titus, juo William Ellery Leonard. On the Nature of Things. Blacksburg, VA: Virginia Tech, 2001.
MLA-čujuhus (9. p.)
Lucretius Carus, Titus, juo William Ellery Leonard. On the Nature of Things. Virginia Tech, 2001.
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