Gaya APA
Ibbotson, Mark. (2009).
Professional english in use: engineering: technical english for professionals .
Singapore:
Cambridge.
Gaya Chicago
Ibbotson, Mark.
Professional english in use: engineering: technical english for professionals.
Singapore:
Cambridge,
2009.
Text.
Gaya MLA
Ibbotson, Mark.
Professional english in use: engineering: technical english for professionals.
Singapore:
Cambridge,
2009.
Text.
Gaya Turabian
Ibbotson, Mark.
Professional english in use: engineering: technical english for professionals.
Singapore:
Cambridge,
2009.
Print.