Cita APA (7th ed.)
Harper, R. (2013). Practical foundations for programming languages. Cambridge University Press.
Cita Chicago (17th ed.)
Harper, Robert. Practical Foundations for Programming Languages. Cambridge ; New York: Cambridge University Press, 2013.
Cita MLA (9th ed.)
Harper, Robert. Practical Foundations for Programming Languages. Cambridge University Press, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.