APA Edition Citation

Alencar, M. S., & Rocha, V. C. (2005). Communication systems.

Chicago Edition Citation

Alencar, Marcelo S., and Valdemar C. Rocha. Communication Systems. Springer Science Business Media,Inc, 2005.

MLA Edition Citation

Alencar, Marcelo S., and Valdemar C. Rocha. Communication Systems. 2005.

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