Cita APA (7th ed.)

Gardner, J. (1994). Learning UNIX (2nd ed.). Sams.

Cita Chicago (17th ed.)

Gardner, James. Learning UNIX. 2nd ed. Carmel, Ind: Sams, 1994.

Cita MLA (9th ed.)

Gardner, James. Learning UNIX. 2nd ed. Sams, 1994.