APA-čujuhus (7. p.)
Harper, R. (2013). Practical foundations for programming languages. Cambridge University Press.
Chicago-čujuhus (17. p.)
Harper, Robert. Practical Foundations for Programming Languages. Cambridge ; New York: Cambridge University Press, 2013.
MLA-čujuhus (9. p.)
Harper, Robert. Practical Foundations for Programming Languages. Cambridge University Press, 2013.
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