Παραπομπή APA

Roach, P. (1996). Excel in easy step. Comdex computer publishing.

Παραπομπή Chicago Style

Roach, Pamela. Excel in Easy Step. New Delhi: Comdex computer publishing, 1996.

Παραπομπή MLA

Roach, Pamela. Excel in Easy Step. Comdex computer publishing, 1996.