Gaya APA
Williams, ivor. (2007).
English for Science and Engineering .
Boston, USA:
Heinle Cengage Learning.
Gaya Chicago
Williams, ivor.
English for Science and Engineering.
Boston, USA:
Heinle Cengage Learning,
2007.
Monograf.
Gaya MLA
Williams, ivor.
English for Science and Engineering.
Boston, USA:
Heinle Cengage Learning,
2007.
Monograf.
Gaya Turabian
Williams, ivor.
English for Science and Engineering.
Boston, USA:
Heinle Cengage Learning,
2007.
Monograf.