Penggayaan APA
Bolton. (1981).
Materials technology 4 .
London:
Buterworths.
Chicago Style
Bolton.
Materials technology 4.
London:
Buterworths,
1981.
Text.
MLA Style
Bolton.
Materials technology 4.
London:
Buterworths,
1981.
Text.
Turabian Style
Bolton.
Materials technology 4.
London:
Buterworths,
1981.
Print.