APA ציטוט

Leon, A. . .., & Leon, M. . .. (1997). E - mail in a nutshell. Leon Tech World.

Chicago Edition Citation

Leon, Alexis ., and Mathews Leon. E - Mail in a Nutshell. New Delhi: Leon Tech World, 1997.

ציטוט MLA

Leon, Alexis ., and Mathews Leon. E - Mail in a Nutshell. Leon Tech World, 1997.