Gaya APA
lyle, keith. (2001).
Gunung .
london:
Grolier international.
Gaya Chicago
lyle, keith.
Gunung.
london:
Grolier international,
2001.
Text.
Gaya MLA
lyle, keith.
Gunung.
london:
Grolier international,
2001.
Text.
Gaya Turabian
lyle, keith.
Gunung.
london:
Grolier international,
2001.
Print.