Gaya APA
Lifer, E, S.
(2007).
The New Book Of Knowledge 4
(
Cet . 1)
.
US:
Scholastie Library Publishing.
Gaya MLA
Lifer, Evani, St.
"The New Book Of Knowledge 4".
Cet . 1
US:
Scholastie Library Publishing,
2007.
Text.