Cita APA (7th ed.)

(2007). Adobe acrobat 8.0: Level 1 (Second Edition.). Element K.

Cita Chicago (17th ed.)

Adobe Acrobat 8.0: Level 1. Second Edition. Ropchester, New York: Element K, 2007.

Cita MLA (9th ed.)

Adobe Acrobat 8.0: Level 1. Second Edition. Element K, 2007.