Gaya APA
Davis, E, J, W.
(1991).
Adult Learners English with Answer 2 / John W Davis (editor)
.
Jakarta:
Binarupa.
Gaya MLA
Davis, Editor:, John, W.
"Adult Learners English with Answer 2 / John W Davis (editor)".
Jakarta:
Binarupa,
1991.
Text.