APA Style
Widdowson, H.G. (1990).
Aspects of Language Teaching .
Bandung:
PT Remaja Rosdakarya.
Chicago Style
Widdowson, H.G.
Aspects of Language Teaching.
Bandung:
PT Remaja Rosdakarya,
1990.
Text.
MLA Style
Widdowson, H.G.
Aspects of Language Teaching.
Bandung:
PT Remaja Rosdakarya,
1990.
Text.
Turabian Style
Widdowson, H.G.
Aspects of Language Teaching.
Bandung:
PT Remaja Rosdakarya,
1990.
Print.