Gaya APA
Felicity, O., Michael, M. (2001).
English vocabulary in use : elementary / Michael McCarthy, Felicity O'Dell .
Jakarta:
Erlangga.
Gaya MLA
O\'dell, Felicity., McCarthy, Michael.
"English vocabulary in use : elementary / Michael McCarthy, Felicity O'Dell".
Jakarta:
Erlangga,
2001.
Skripsi.