Penggayaan APA
Ryff. (1994).
Electric machinery (2).
London:
PHI.
Chicago Style
Ryff.
Electric machinery.
2
London:
PHI,
1994.
Text.
MLA Style
Ryff.
Electric machinery.
2
London:
PHI,
1994.
Text.
Turabian Style
Ryff.
Electric machinery.
2
London:
PHI,
1994.
Print.