Gaya APA
Wishon, G, E., Burks, J, M. (1980).
Let's Write English Revised Edition .
NEW YORK:
Litton Educational Publishing International.
Gaya MLA
Wishon, George, E.., Burks, JUlia, M..
"Let's Write English Revised Edition".
NEW YORK:
Litton Educational Publishing International,
1980.
Text.