APA
Blake R., . (2012). Electronic communication systems .-2nd ed .-978-81-315-1841-0. Cengage Learning: Andover.
Chicago
Blake Roy, . 2012. Electronic communication systems .-2nd ed .-978-81-315-1841-0. Cengage Learning: Andover.
Harvard
Blake R., . (2012). Electronic communication systems .-2nd ed .-978-81-315-1841-0. Cengage Learning: Andover.
MLA
Blake Roy, . Electronic communication systems .-2nd ed .-978-81-315-1841-0. Cengage Learning: Andover. 2012.