APA Style
National Geographic Vol. 200, No. 5, November 2001. (2001).
Wasingthon:
National Geographie.
Chicago Style
National Geographic Vol. 200, No. 5, November 2001.
.
Wasingthon:
National Geographie,
2001.
.
MLA Style
National Geographic Vol. 200, No. 5, November 2001.
.
Wasingthon:
National Geographie,
2001.
.
Turabian Style
National Geographic Vol. 200, No. 5, November 2001.
Wasingthon:
National Geographie,
2001.
.