Smyth, N. (2020). Ubuntu 20.04 Essentials (1st edition.). Packt Publishing.
Cita Chicago Style (17a ed.)Smyth, Neil. Ubuntu 20.04 Essentials. 1st edition. Packt Publishing, 2020.
Cita MLA (8a ed.)Smyth, Neil. Ubuntu 20.04 Essentials. 1st edition. Packt Publishing, 2020.
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