Cita APA (7th ed.)
Beck, L. L. (1997). System software: An introduction to systems programming (3rd ed.). Pearson Education.
Cita Chicago (17th ed.)
Beck, L. L. System Software: An Introduction to Systems Programming. 3rd ed. Delhi: Pearson Education, 1997.
Cita MLA (9th ed.)
Beck, L. L. System Software: An Introduction to Systems Programming. 3rd ed. Pearson Education, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.