Cita APA (7a ed.)

Kahrel, P. (1992). Working with foreign languages and characters in WordPerfect: 5.1 and WordPerfect for Windows. John Benjamins.

Cita Chicago Style (17a ed.)

Kahrel, Peter. Working with Foreign Languages and Characters in WordPerfect: 5.1 and WordPerfect for Windows. Philadelphia [etc.]: John Benjamins, 1992.

Cita MLA (9a ed.)

Kahrel, Peter. Working with Foreign Languages and Characters in WordPerfect: 5.1 and WordPerfect for Windows. John Benjamins, 1992.