Gaya APA
Fogel, K. (2005).
Producing open source software : how to run a successful free software project (1st ed.).
Sebastopol, CA:
OReilly.
Gaya MLA
Fogel, Karl.
"Producing open source software : how to run a successful free software project".
1st ed.
Sebastopol, CA:
OReilly,
2005.
Hardcopy (Textbook).