Gaya APA
Ling, J., Smith, A.
(2003).
English 4A : Textbook
.
Sebastopol, CA:
Federal Marhsall Cavendish Education.
Gaya MLA
Ling, Judy., Smith, Anne.
"English 4A : Textbook".
Sebastopol, CA:
Federal Marhsall Cavendish Education,
2003.
.