Gaya APA
Dineen, Jacqueline. (2001).
Energi alam .
london:
Grolier international.
Gaya Chicago
Dineen, Jacqueline.
Energi alam.
london:
Grolier international,
2001.
Text.
Gaya MLA
Dineen, Jacqueline.
Energi alam.
london:
Grolier international,
2001.
Text.
Gaya Turabian
Dineen, Jacqueline.
Energi alam.
london:
Grolier international,
2001.
Print.