APA Citation

Helmke, M. Ubuntu Linux unleashed 2021 edition: Covers 20.04, 20.10, and 21.04 (14th edition.).

Chicago Style Citation

Helmke, Matthew. Ubuntu Linux Unleashed 2021 Edition: Covers 20.04, 20.10, and 21.04. 14th edition.

MLA Citation

Helmke, Matthew. Ubuntu Linux Unleashed 2021 Edition: Covers 20.04, 20.10, and 21.04. 14th edition.

Warning: These citations may not always be 100% accurate.