APA (7th ed.) Citation

Longo, G. (1983). Secure digital communications. Springer-Verlag.

Chicago Style (17th ed.) Citation

Longo, G. Secure Digital Communications. Wien ; New York: Springer-Verlag, 1983.

MLA (9th ed.) Citation

Longo, G. Secure Digital Communications. Springer-Verlag, 1983.

Warning: These citations may not always be 100% accurate.