Gaya APA

Shrader, R, L, S, R, L. (1991). Electrinic communication.-- (Ed. 6.--). America: McGraw-Hill.

Gaya MLA

Shrader, Robert, L., Shrader,, Robert, L.. "Electrinic communication.--". Ed. 6.-- America: McGraw-Hill, 1991. Buku.