APA Style
National Geographic :the Photographs;;;9. (the United States).
:
science.
Chicago Style
National Geographic :the Photographs;;;9.
;2008;"334 p. : - ill. (chiefly col.) ;";;779 BEN .
:
science,
the United States.
.
MLA Style
National Geographic :the Photographs;;;9.
;2008;"334 p. : - ill. (chiefly col.) ;";;779 BEN .
:
science,
the United States.
.
Turabian Style
National Geographic :the Photographs;;;9.
:
science,
the United States.
.