Gaya APA
Hartley, Bernard. (1990).
Streamline english: workbook A 1-40 .
Oxford:
Oxford University Press.
Gaya Chicago
Hartley, Bernard.
Streamline english: workbook A 1-40.
Oxford:
Oxford University Press,
1990.
Text.
Gaya MLA
Hartley, Bernard.
Streamline english: workbook A 1-40.
Oxford:
Oxford University Press,
1990.
Text.
Gaya Turabian
Hartley, Bernard.
Streamline english: workbook A 1-40.
Oxford:
Oxford University Press,
1990.
Print.