Cita APA (7a ed.)

Bresnahan, C., & Blum, R. (2020). Lpic study guide: Linux professional institute certification (Fifth edition.). Sybex.

Cita Chicago Style (17a ed.)

Bresnahan, Christine, y Richard Blum. Lpic Study Guide: Linux Professional Institute Certification. Fifth edition. Indianapolis, Indiana: Sybex, 2020.

Cita MLA (9a ed.)

Bresnahan, Christine, y Richard Blum. Lpic Study Guide: Linux Professional Institute Certification. Fifth edition. Sybex, 2020.