Gaya APA
dkk, D, R.
(2009).
Ensiklopedia Dunia Sains "Energi"
.
:
ThreeMidea Publishing.
Gaya MLA
dkk, Deni, Riana.
"Ensiklopedia Dunia Sains "Energi"".
:
ThreeMidea Publishing,
2009.
Text.