APA Style
National Geographic. (2013).
New York:
National Geographic Society.
Chicago Style
National Geographic.
Vol. 223 No.4 April 2013.
New York:
National Geographic Society,
2013.
Perpustakaan KALBIS.
IEEE Style
*IEEE style untuk Skripsi
National Geographic.
Vol. 223 No.4 April 2013.
Vol. 223 No.4 April 2013.
New York:
National Geographic Society.
*IEEE style untuk Buku/Jurnal
National Geographic.
Vol. 223 No.4 April 2013.
Vol. 223 No.4 April 2013.
New York:
National Geographic Society,
2013.
MLA Style
National Geographic.
Vol. 223 No.4 April 2013.
New York:
National Geographic Society,
2013.
Perpustakaan KALBIS.
Turabian Style
National Geographic.
New York:
National Geographic Society,
2013.
Perpustakaan KALBIS.