Gaya APA
Marshall, S, V., Skitek, G, G. (1990).
Electromagnetic Concepts and Aplications (3).
Amerika:
Prentice Hall PTR.
Gaya MLA
Marshall, S., V.., Skitek, G., G..
"Electromagnetic Concepts and Aplications".
3
Amerika:
Prentice Hall PTR,
1990.
Text.