APA
Dennis R. &. J. C., . (1987). Electrocnic communications. Prentice Hall of india, New Delhi: .
Chicago
Dennis Roddy & John Coolen, . 1987. Electrocnic communications. Prentice Hall of india, New Delhi: .
Harvard
Dennis R. &. J. C., . (1987). Electrocnic communications. Prentice Hall of india, New Delhi: .
MLA
Dennis Roddy & John Coolen, . Electrocnic communications. Prentice Hall of india, New Delhi: . 1987.