Gaya APA
Saefullah, A.
(2009).
ensiklopedia IPS Alam Nusantara
.
Jakarta:
Penerbit Ganesha Exact.
Gaya MLA
Saefullah, Aep.
"ensiklopedia IPS Alam Nusantara".
Jakarta:
Penerbit Ganesha Exact,
2009.
Text.