Cita APA

Lee, D. T., Lee, D. T., Shish, S. P., & Tygar, J. D. (2009). Computer security in the 21st century. Springer.

Citación estilo Chicago

Lee, D T., D T. Lee, S P. Shish, y J D. Tygar. Computer Security in the 21st Century. New Delhi: Springer, 2009.

Cita MLA

Lee, D T., et al. Computer Security in the 21st Century. Springer, 2009.